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1.rehabilitation n.翻修；复兴；(恢复残疾人正常生活的)康复
He's booked himself into a rehabilitation clinic.
他自己联系了一家康复诊所。
2.flex vt. 折曲；使收缩 vi. 弯曲；收缩 n. 屈曲；电线；松紧带 adj. 弹性工作制的
He slowly flexed his muscles and tried to stand.
他缓慢地活动了一下肌肉，想站起来。
3.prototype n. 原型；标准，模范
Chris Retzler has built a prototype of a machine called the wave rotor.
克里斯·雷兹勒做出了一台叫做波转子的样机。
