题目内容
改写句子
It's very difficult for us to fight pollution. (保持原句意思)
________ ________ ________ _______ very difficult for us.
答案:
解析:
解析:
To, fight, pollution, is |
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题目内容
改写句子
It's very difficult for us to fight pollution. (保持原句意思)
________ ________ ________ _______ very difficult for us.
To, fight, pollution, is |