英语词汇“前松後紧”的读音、翻译、释义、用法及例句-语文网

词汇	前松後紧
释义	前松後紧 qian song hou jin ㄑㄧㄢˊ ㄙㄨㄥㄏㄡˋ ㄐㄧㄣˇ 1.to be slack at the beginning and have to speed up towards the end
随便看	air speed airstream air strike airstrip airt airtel airtel air terminal airtight air time air-to-air air-to-ground air-to-surface air traffic control air traffic controller air transport air transportation air transportation insurance air transportation waybill air transport company air vesicle air vice-marshal airwards airwave air waves

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