名词
中文翻译：烟灰
同义词：
['dust', 'smoke', 'ash']
例句：
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1. The factory is surrounded by soot-covered buildings.
工厂周围被烟灰覆盖的建筑环绕。
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2. The firefighters had to battle the soot and smoke from the fire.
消防员不得不与火势中的烟灰和烟雾作斗争。
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3. The old man's house was covered in soot from years of smoking.
这位老人的房子被多年的吸烟留下的烟灰所覆盖。