We can also set up a really effective system of defense in space to protect our country from foreign attack.

我们也可以设立真正有效率的太空防卫系统，以保护国家免受外来攻击。

youdao

We can also set up a really effective system of defense in space to protect our country from foreign attack.

我们也可以设立真正有效率的太空防卫系统，以保护国家免受外来攻击。

youdao