中科新闻网修罗特种兵盗版在哪找:in vacation和at vacation的区别是什么？？
来源：百度文库 编辑：中科新闻网 时间：2024/05/17 04:24:02
1. I was on vacation when he called.
2. I was having Christmas vacation at/in Beijing.
没有 in/at vacation
两个都不通！Vacation 最多用的是:
During my vaction, I went overseas for a holiday.
in vacation和at vacation的区别是什么？？
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谁用过乾坤at-in v-922？？可以告诉我这个MP3怎么样吗？
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