adj. 
飞行羽的
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burette,
burg,
burga,
burgage,
Burgas,
burgee,
Burgenland,
burgeon,
burgeoning,
burger,
相似单词
nulling,
null-instrument,
nullipara,
nulliparity,
nulliparous,
nullipennate,
nulliplex,
nullipore,
nullipotency,
nullisomatic,