straighten

把…弄直；挺起来英释vvto become straight, or to make something straight

1 straighten out,清理；使成直线；澄清；改正

2 straighten up,好转；改正；清理

1 Can you straighten your leg?.你能把腿伸直吗？

2 The three men straightened and stood waiting..那3个人挺直了腰站着等。