片語: have to 表達: 必須去做～ 用法: have to + ... - Facebook

片語: have to 表達: 必須去做～ 用法: have to + 原形動詞事件Ex: We have to study tonight. We can't go out with you. [我們今晚必須唸書。我們不能和你們出去。]

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