3. I am sick and tired of doing homework. 我对做作业感到厌烦.
Sick and tired of something 可以视之为一个片语,并没有 sick (生病) 的意思在里面! 例如贩卖机老是吃钱,你也可以说"I am sick and tired of this vending machine."还有一句话也很有趣:I am so sick and tired of being sick and tired. 就是说"你对于老是感到厌烦已经感到十分厌烦了", 我想这是很多都市人共同的心声吧。