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。

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The researchers made artificial wings from a thin film of polymer, fabricating them with plastic veins mimicking those of an actual swallowtail butterfly.

研究者们用薄膜聚合物做成了人工翅膀，用加上塑料制的血管，使它就像是一只真正的燕尾蝶。

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I saw a tiger swallowtail butterfly.

我看见一只虎斑燕尾凤蝶。

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At the end of our four-hour hike, Remo pounced into a dense roadside thicket to catch a scarce swallowtail, a butterfly noted for its brilliant blue and gold tail whose design mimics the head of a distasteful insect to ward off predators.

BBC: Switzerland��s valley of butterflies