废气 fèiqì waste gas Definitions Defs Origin Strokes Stroke Words Sentences Sents 2 sentences 工厂排放的废气严重污染了大气。 gōngchǎng páifàng de fèiqì yánzhòng wūrǎn le dàqì. Exhaust gas emitted by factories seriously pollutes the atmosphere. Source: Dong Chinese Dictionary工厂必须减少废气排放以保护环境。 gōngchǎng bìxū jiǎnshǎo fèiqì páifàng yǐ bǎohù huánjìng. Factories must reduce exhaust emissions to protect the environment. Source: Dong Chinese Dictionary