名词
中文翻译：堆栈
同义词：
['stack', 'chimney例句：1. The stack of books on the desk is too heavy to carry.（桌上那堆书太重了，搬不动。）2. The chimney was blocked by a thick layer of ash.（烟囱被厚厚的灰层堵住了。）']
例句：
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1. The stack of books on the desk is too heavy to carry.
桌上那堆书太重了，搬不动。
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2. The chimney was blocked by a thick layer of ash.
烟囱被厚厚的灰层堵住了。
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3. The fireman had to clear the stack flue before they could put out the fire.
消防员在扑灭大火之前必须先清理烟囱。