工厂要先处理废气。 工廠要先處理廢氣。 工廠要先處理廢氣。

Factories must treat their waste gas first.

Simplified
工厂要先处理废气。
Traditional (Taiwan)
工廠要先處理廢氣。
Pinyin
Gōngchǎng yào xiān chǔlǐ fèiqì.
Bopomofo
ㄍㄨㄥ ㄔㄤˇ ㄧㄠˋ ㄒㄧㄢ ㄔㄨˇ ㄌㄧˇ ㄈㄟˋ ㄑㄧˋ。

Written with HSK 5 vocabulary, at CEFR level B2.

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