问题描述：
英语中为什么用in which
He had at last been allowed to send a fax in which he informed the editor that he had been arrested.
例如这个句子
就是In 为什么会放到 which 前面呢
He had at last been allowed to send a fax in which he informed the editor that he had been arrested.
例如这个句子
就是In 为什么会放到 which 前面呢
问题解答：
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