他们说，这宇宙微波背景幅射代表着宇宙大爆炸的余辉。

This cosmic microwave background radiation, they said, represents the ancient afterglow of the big bang.

youdao

当局建议，仍然留在20到30公里范围内的居民尽量留在室内，最大程度地减少暴露于幅射的时间。

Homes within 20 kilometers of the plant have been evacuated. People who have remained in a zone between 20 and 30 kilometers have been advised to stay indoors to minimize their exposure to radiation.

youdao

星期四，该反应堆涡轮机室里的水被发现含有高幅射，两名在那里工作的工人被幅射灼伤皮肤，这一事件引起关注。

Concern rose after two workers suffered skin burns Thursday when they were exposed to water in the reactor's turbine building.

youdao

And what's interesting about this sun is it has a ray of light coming out of the top.

这幅画的有趣之处在于红日的光线从画面的顶端射了出来。

It's like 课堂 - SpeakingMax英语口语达人