没有不冒烟的火。

There is no fire without smoke.

youdao

他四面环顾，找到一个不冒烟的烟囱，爬到那儿以后，他就神不知鬼不觉地消失到那烟囱口里了。

He looked around for a chimney from which no smoke issued, and having reached it, he disappeared through the orifice without being seen by any one.

youdao

小球燃料不冒烟或者发出任何有害的烟雾。

Pellet fuel does not smoke or give off any harmful fumes.

youdao