swallowtail
n. 燕尾服；燕子尾巴；燕尾叉形旗子的末端
例句
I saw a tiger swallowtail butterfly.
我看见一只虎斑燕尾凤蝶。
Mr Mays, said: 'Swallowtail caterpillars are beautiful creatures.
梅先生说：“燕尾状毛虫是很美丽的生物。”
They have created a model swallowtail butterfly that can fly just like the real thing.
他们设计出一种模型，这个模型能够像真正的燕尾蝶那样飞起来。
