chimney

Thick black smoke poured out of the factory chimney all throughout the afternoon.

(Chinese) 整个下午，工厂的烟囱里一直冒出浓浓的黑烟。

In the winter, we have to clean the chimney to prevent dangerous fires from soot buildup.

(Chinese) 冬天，我们必须清理烟囱，以防积攒的烟垢引发危险火灾。