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blade
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音标：英 [bleɪd] 美 [bled]
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解释：
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n. 叶片；刀片，刀锋；剑
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中文词源：
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blade 刀片来自PIE *bhel, 膨胀，生长，繁茂，同blow. 原指生长的叶子，叶片，后指刀片。
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英文词源：
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blade
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blade: [OE] The primary sense of blade appears to be ‘leaf’ (as in ‘blades of grass’, and German blatt ‘leaf’). This points back to the ultimate source of the word, the Germanic stem *bhlō-, from which English also gets bloom, blossom, and the now archaic blow ‘come into flower’. However, the earliest sense recorded for Old English blæd was the metaphorical ‘flattened, leaflike part’, as of an oar, spade, etc. The specific application to the sharp, cutting part of a sword or knife developed in the 14th century.
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=> bloom, blossom, blow
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blade (n.)
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Old English blæd "a leaf," but also "a leaf-like part" (of spade, oar, etc.), from Proto-Germanic *bladaz (cognates: Old Frisian bled "leaf," German Blatt, Old Saxon, Danish, Dutch blad, Old Norse blað), from PIE *bhle-to-, suffixed form (past participle) of *bhel- (3) "to thrive, bloom," possibly identical with *bhel- (2) "to blow, swell" (see bole). Extended in Middle English to shoulders (c. 1300) and swords (early 14c.). The modern use in reference to grass may be a Middle English revival, by influence of Old French bled "corn, wheat" (11c., perhaps from Germanic). The cognate in German, Blatt, is the general word for "leaf;" Laub is used collectively as "foliage." Old Norse blað was used of herbs and plants, lauf in reference to trees. This might have been the original distinction in Old English, too. Of men from 1590s; in later use often a reference to 18c. gallants, but the original exact sense, and thus signification, is uncertain.
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双语例句：
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1. A blade guard is fitted to protect the operator.
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为保证操作人员的人身安全安装了桨叶保护罩。
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来自柯林斯例句
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2. A sharp blade is likely to nick the skin and draw blood.
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锋利的刀刃可能会划伤皮肤，导致出血。
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来自柯林斯例句
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3. The soil sticks to the blade and blocks the plough.
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土粘在犁铧上，卡住了犁。
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来自柯林斯例句
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4. To forge a blade takes great skill.
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锻造刀刃需要很高超的技巧。
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来自柯林斯例句
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5. a blade of grass
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一片草叶
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来自《权威词典》
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更多相关例句：
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the blades of a propeller
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螺旋桨叶【牛津词典】
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rotor blades on a helicopter
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直升机的旋翼【牛津词典】
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Many of these tools have sharp blades, so be careful.
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这些工具中很多都有锋利的刀片，务必小心。【柯林斯高阶英语词典】
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FeaturesOptic fibre illumination system is applied in the blade.
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特点咽喉镜叶片为高亮度光导纤维组合.【期刊摘选】
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C is a selected blade drag coefficient at the hub.
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C是在毂处的选定叶片曳力系数.【期刊摘选】
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At this time, the blade is really close to me, 0.01 cm I think.
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在这个时候, 刀片是真的接近我, 0.01厘米我的想法.【期刊摘选】
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The power type pump is also called impeller type pump or blade type pump.
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动力式泵又称叶轮式泵或叶片式泵.【期刊摘选】
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You're just sharp as a razor blade in the stock marker.
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你在股票市场上就像剃须刀片一样锋利.【期刊摘选】
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These skate boots will also accomodate an ice blade for ice skating.
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滑冰鞋,这些也将容纳一个冰滑冰刀.【期刊摘选】
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There, a little below the right shoulder blade, and to the side , his scalpel would enter.
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他的刀要从那儿进去, 在右边肩胛骨下面一点儿, 靠边上的地方.【辞典例句】
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The cutting performances of saw blade by solution and non solution heat treating were determined.
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对比测定了经固溶处理和未经固溶处理锯条的锯切性能.【期刊摘选】
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The coated twisty blade patterns possesses higher bending strength and hardness than the uncoated ones.
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带涂层可熔扭曲叶片模具有更高抗弯强度和硬度,可以适应制芯操作.【期刊摘选】
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Shrek went under the shearer's blade during a live half - hour news programme on TV New Zealand.
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新西兰电视新闻节目对史瑞克被迫剪羊毛的全过程进行了半小时的直播.【期刊摘选】
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Not a flower nor even a blade of grass will grow in this desert.
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没有一朵花甚至一片草会生长在这沙漠里.【《简明英汉词典》】
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He is a good blade.
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他剑术高明.【《现代英汉综合大词典》】
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A bayonet blade is forged from the finest steel.
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刺刀刃是用最优质的钢锻造的.【《现代汉英综合大词典》】
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The knife's blade gleamed dully in the dark.
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刀刃在黑暗中幽幽地闪着光.【《简明英汉词典》】
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Blade and handle are the component parts of a knife.
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刀身和刀柄是一把刀的组成部分.【《现代英汉综合大词典》】
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The propeller blade has been mounted.
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推进器的叶片已经安装好了.【《现代汉英综合大词典》】
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a blade of grass
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一片草叶【《牛津高阶英汉双解词典》】
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a knife with a retractable blade
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弹簧刀【《牛津高阶英汉双解词典》】
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Cannibal killer Jeffrey Dahmer has been caught trying to hide a razor blade in his cell.
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食人杀手杰弗里·达默被抓到试图将一片剃须刀片藏在牢房里。【柯林斯例句】
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His voice stopped short as he saw the blade emerge from Desmond's pocket.
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当他看到从德斯蒙德口袋里露出的刀刃时，他突然不吭声了。【柯林斯例句】
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A blade guard is fitted to protect the operator.
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为保证操作人员的人身安全安装了桨叶保护罩。【柯林斯例句】
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A sharp blade is likely to nick the skin and draw blood.
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锋利的刀刃可能会划伤皮肤，导致出血。【柯林斯例句】
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The soil sticks to the blade and blocks the plough.
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土粘在犁铧上，卡住了犁。【柯林斯例句】
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To forge a blade takes great skill.
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锻造刀刃需要很高超的技巧。【柯林斯例句】
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