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来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 05:23:58

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you must pay in advance 你必须提前付款.
please inform me in advance in case of any change 如有变化请提前通知我.
b.在...之前,如：
you can walk in advance of me 你可以走在我前面.
alone 在此为形容词,这是一个非常有用的英语句型格式,类似还有：

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