大火产生了大量浓烟。

The fire created a lot of ___smoke.

医生建议他戒烟，因为吸烟有害健康。

The doctor advised him to quit ___smoking because it's harmful to health.

爷爷用樱桃木烟熏火腿，味道特别香。

Grandpa used cherry wood to ___smoke the ham for a unique flavor.

工厂的烟囱冒着滚滚浓烟。

The factory chimney ___emits smoke heavily during operation.