of course在口语中的用法表示：当然；自然。如：He was late again, of course. 自然他又迟到了。Of course I’ll help you. 我当然会帮你。Of course, I wish both of you well. 当然我希望你们俩身体健康。He was joking. Of course I’m not a poet. 他是在开玩笑，我当然不是诗人。通常在对话中用作回答。如：A：Are you coming with us? 你和我们一起去吗?B：Of course. 当然啦。A：Will you be able to come to the meeting? 你能来开会吗?B：Of course. 当然能来。A：May I book your dictionary? 我可借你的字典吗?B：Yes, of course. 当然可以。有时与not连用。如：A：Were you glad to leave? 你愿意离开吗?B：Of course not. 当然不愿意。A：Do you want lost the game? 你起输掉这场比赛吗?B：Of course not. 当然不想。

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