Afterwards he found a sunspot group which lived long enough to disappear from view on the western limb of the sun, to reappear on its eastern limb, and finally to regain its old position.
后来，他发现了一个太阳黑子群，它存在时间很长，从太阳的西边消失，又在东边出现，最后又回到原来的位置。
The racist driver had made him sit outside in the hot sun on a long trip to Pretoria, simply because he wasn't white.
在去往比勒陀利亚的长途旅行中，种族主义的司机让他坐在外面被炎热的太阳炙烤，仅仅因为他不是白人。
Get enough sun exposure, he says, and skin will wrinkle long before its time.
在阳光下暴露足够久，皮肤的皱纹就会出现得早得多。
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