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heat one's head against a wall
[口语]试图做不可能成功之事,白费气力,枉费心机
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unprecedented adj. 空前的;无前例的
Beeching [人名] 比钦
jane n. 简(女子名)
hydrodynamics n. [流] 流体力学;[流] 水动力学;流体动力学
elapse n. 流逝;时间的过去 vi. 消逝;时间过去
interdict n. 禁令;禁止 vt. 阻断,封锁;禁止
axiom n. [数] 公理;格言;自明之理
recreational adj. 娱乐的,消遣的;休养的
effrontery n. 厚颜无耻
unromantic adj. 平淡无奇的
neatness n. 干净,整洁
prove vi. 证明是 vt. 证明;检验;显示
damon n. 达蒙(罗马神话中的西西里人, 与Pythisa为生死之交);戴蒙(男子名)
transforming v. 转化,转变(transform的ing形式)
bb abbr. 滚珠轴承(ball bearing);铅笔芯(double black)
ballgame n. (美)棒球运动
conceiving 构想 怀孕 考虑(conceive的现在分词)
cretinism n. 白痴病;呆小症
accused n. 被告 v. 指责;控告(accuse的过去式) adj. 被控告的
Walkinshaw [人名] [英格兰人姓氏] 沃金肖 Walkingshaw的变体
考试词汇表
axis of surface roller
axis of the indicatrix
axis of total symmetry
axis slant bed machine
axisymmetric accretion
axisymmetric structure
axisymmetrical forging
axisymmetrical loading
axle centering machine
axle driven compressor
axle load equalisation
axle reduction gearbox
axle sleeve(axle bush)
axle-box, rail vehicle
axle-load compensation
axo-gland cell synapse
axon telodendrtic zone
axonal retraction ball
axonal(axoplasmic)flow
axonometric projection