名词
中文翻译：中空的
同义词：
['mesosphere', 'mesophase例句：1. The mesophlegm in the lungs acts as a barrier against infection.（肺部的黏液充当了对感染的屏障。）']
例句：
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1. The mesophlegm in the lungs acts as a barrier against infection.
肺部的黏液充当了对感染的屏障。
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2. During the mesophase of the cell cycle, DNA replication occurs.
在细胞周期的间期，DNA复制发生。
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3. The mesophlegm is responsible for trapping and neutralizing pollutants in the air.
中空的黏液负责捕捉和中和空气中的污染物。