题目内容
根据句意和所给的首字母提示,补全句子中的单词。
If there were more trees on the earth, there would be l_________ pollution.
答案:less
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题目内容
根据句意和所给的首字母提示,补全句子中的单词。
If there were more trees on the earth, there would be l_________ pollution.