But once Janzen, who breeds wasps for his research on caterpillar-parasite symbioses, started to look, colors could be seen by the naked eye as wings passed over insects' black bodies.

一次，Janzen正在为他的昆虫共生实验培育蜜蜂，而当昆虫的翅膀越过黑色幼体的时候，他突然发现了肉眼可见的色彩。

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If you know your partner has someone waiting in the wings, it's hard to be motivated to work on your relationship, or to be enthusiastic about it.

如果你知道你的另一半有别的人在翘首以待，确实是很难让你经营这段感情或是对它抱有热情。

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Be with me on the wings of health!

乘着健康的翅膀，你和我一起飞翔！

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Russia's initial response was to suspend talks on selling China the Su-33, a fighter with folding wings that can be used on aircraft carriers.

WSJ: China Clones, Sells Russian Fighter Jets

Brewer acknowledged that he wonders how tough the Knicks would be defensively if he and Shumpert played on the wings.

WSJ: Brewer May Deserve an Encore

Colour patterns on the wings of the butterflies may be crucial in forming new species, because they serve as mating cues.

BBC: NEWS | Science/Nature | Two species become one in the lab