短語(yǔ)詞組短語(yǔ)air passenger transportation market 客運(yùn)商場(chǎng)Air cargo transportation 民航貨物運(yùn)輸Air Cargo Transportation Business 航空貨物運(yùn)輸業(yè)務(wù)air r transportation risk 航空運(yùn)輸險(xiǎn)air r transportation insurance 空運(yùn)air cushion transportation 氣墊運(yùn)輸air flow transportation 氣流輸送air passenger transportation 航空客運(yùn)air material transportation system 航空貨運(yùn)系統(tǒng) 返回 air transportation