- 释义：
- n. 烟雾
- 例句：
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The sky over the city was overspread with a heavy smog.
城市上空罩上了一层烟雾.
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The river appeared as if enveloped in smog.
那条河好像笼罩在烟雾之中.
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This system is approved in California for local smog - station installation.
这种系统已通过了加利福尼亚州城市烟雾站的鉴定.
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