Related to sea slugs, nudibranchs are shell-less mollusks that display some of the most vibrant colors found anywhere in nature.

海兔和海蛞蝓是近亲，本身是一种无壳的软体动物，其身体能发出存在于自然界中大多数颜色鲜亮的光芒。

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Many cultures consider unusual eggs--misshapen, empty, yolkless, shell-less, or ones with the yolk and white merged--to be laid not by hens but by roosters.

许多文明认为不同寻常的鸡蛋——畸形、空心的、没有蛋黄的、无壳的、或是蛋白蛋清混合的——是公鸡生的而不是母鸡。

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OBJECTIVE:To use the shell-less hen's egg test chorioallantoic membrane as alternative methods to test the skin irritation hazard of some sunscreen cosmetics.

目的：采用平皿法鸡胚试验方法作为替代方法评价化妆品引起人体皮肤不良反应潜在可能的可行性。

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But now cash-strapped consumers are often less willing to shell out for extras like French fries and fountain drinks -- items which traditionally receive a lofty markup, says Evan Hackel, a franchise management consultant in Reading, Mass.

WSJ: Can They Really Make Money Off the Dollar Menu?

Shell said it may be less than two years away from a major advance in shale-gas production in China.

WSJ: What's News

Less admirably, he was a frantic user of shell companies, offshore trusts and other tax-dodging paraphernalia.

ECONOMIST: Jimmy Goldsmith