在这里面有一颗有硬壳的种子。

On the inside there's a seed with a hard shell.

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图中左边的样本，曾经被认为是一种具有硬壳的埃迪·卡拉藻类，其实际直径小于一毫米。

The object on the left, less than a millimetre across in reality, is an example of what were once thought to be the encysted forms of Ediacaran algae.

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这次，他的注意力集中在墙底部的一条陈旧的带有硬壳的管道，他抓住管道上的轮形阀门，很费力的将阀门扭开。

This time, he turns his attention to an old crusty pipe protruding from the bottom of the wall. He grabs the wheel valve on the pipe and turns it with some effort.

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Soon the sun's warmth makes them shed crystal shells - Shattering and avalanching on the snow crust-- Such heaps of broken glass to sweep away You'd think the inner dome of heaven had fallen.

阳光的温暖接着使那水晶的硬壳,从树枝上崩落，一齐倾泻在雪地上-,这么一大堆碎玻璃尽够你打扫,你还以为是天顶的华盖塌了下来。

耶鲁公开课 - 现代诗歌课程节选