如果有天你游遍了全世界，你将会对我们生存的地球有一个全面的了解。

If you travel the whole world someday, you will fully understand the globe on which we live.

youdao

如果有天你游遍了全世界，你将会对我们生存的地球有一个全面的了解。

If you travel the whole world someday, you will fully understand the globe on which we live.

youdao