as weak的用法和樣例：
例句
- He would have worked for his exams all May if his friends had left him alone. Unfortunately they didn't, and he's as weak as water when it comes to saying "no" to a friend.
如果他的朋友們不來打擾，他整個5月都會準備迎考的，但令人遺憾的是他們常來，而他又性格軟弱，不好意思對朋友說「不」字。 - After a week in bed with flu I felt as weak as a kitten.
患流感在床上躺了一周，我覺得身體很虛弱。 - A person regarded as weak, foolish, or stupid.
笨蛋被看作軟弱、傻或愚蠢的人
