拖船又小又黑，还冒着很多烟，但它非常有力，因为它在拖着比它更大的船。

The tugboat is small and dark and it's making a lot of smoke, but it's very strong, because it's pulling the much bigger ship.

youdao

当房间里还有很多烟的时候，镇长走了进来。

The town mayor walked in while there was still a lot of smoke in the room.

youdao

木头燃烧时，它放出很多烟。

Wood gives much smoke while (wood is) burning.

youdao