到上个月为止，我们已经复习了五个单元的翻译：The end of last month, we have over five units 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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The end of last month, we have over five units

To the previous month up to, we has already reviewed five units

Up until last month, we have studied the five units

The end of last month, we have over five units