... extract air 抽气 extract duct排气管道 extract fan 抽气扇 ...
权威例句
1.
Consider media accounts of how WD-40 was used to extract a python from a bus exhaust pipe or a burglar stuck in an air duct (yes, he was arrested).
FORBES: Greasy Coca-Cola
2.
Consider the newspaper accounts of how WD-40 was used to extract a python from a bus exhaust pipe or a burglar stuck in an air duct (yes, he was arrested).