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8.As is known to all,smoking isharmful (有害的) to our health.

分析 众所周知,吸烟有害健康.

解答 答案:harmful.
分析句子结构可知,本句考查短语be harmful to对…有害;故答案为harmful.

点评 翻译填空题考查的是词汇的记忆和运用能力,平时要注意积累和运用.

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