China and the United States have held their first dialogue on outer space safety in Washington.

中国与美国就外太空安全问题在华盛顿进行了首轮会谈。

youdao

China and the United States have held their first dialogue on outer space safety in Washington.

中国与美国就外太空安全问题在华盛顿进行了首轮会谈。

youdao