这些放射性坠尘来自于在美国和世界各地的数以百计的核试验。

The fallout came from hundreds of above-ground nuclear tests in America and other parts of the world.

youdao

这些放射性坠尘来自于在美国和世界各地的数以百计的核试验。

The fallout came from hundreds of above-ground nuclear tests in America and other parts of the world.

youdao