耗子爱熊猫
couldn't help doing sth. couldn't help myself 或 couldn't help but ... 例: He was being so rude that I couldn't help but ordered him to leave. 他如此无礼我忍不住命令他离开。
美妮宝贝
be to do sth 是去做某事,而不是必须去做某事,不得不做某事,必须做某事可以用have to do sth,一个是去做,并不代表必须去做,另一个是必须,不得不去做某事。
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