youdao

The ozone layer protects life on earth from harmful ultra-violet rays.

臭氧层保护地球上的生命免受有害紫外线的辐射。

youdao

An important thing is monitoring the size of the hole in the zone layer above Antarctica, since this is an indicator of global ultra-violet radiation levels.

监测南极上方臭氧层空洞的大小是一件重要的事，因为它是全球紫外线辐射水平的一个指示器。

youdao

The ozone layer protects living things on the Earth's surface from the Sun's ultra-violet radiation.

BBC: Ill wind 'killed dinosaurs'