介绍:
20170929
551. You can reach me at 6609823. 你打电话6609823就能找到我。
552. He phoned to cancel the meeting. 他打电话来取消会议。
553. Please call me before you come. 你来之前请打电话。
554. Please make an appointment with my secretary. 请跟我秘书定个见面时间。
555. I have to change my appointment from Monday to Thursday. 我不得不把约会从周一改到周四。
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