单词	airscrew
释义	airscrew /ˈɛːskruː / noun British An aircraft propeller.In 1480, Leonardo da Vinci drew his famous ‘airscrew’ machine which could never have flown.... Both planes were triplanes with twin tractor airscrews driven by shafts from the fuselage. This helicopter had four lifting airscrews and five auxiliary propellers.
随便看	Bangor bang (or dead) to rights bang (or knock) people's heads together bang someone/thing up bang something out bangtail bangtail muster Bangui bang-up banh mi bani bania banian banish banishment banister Banja Luka Banjarmasin banjax banjo banjoist Banjul bank bankability bankable

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