顺便一说，在爱因斯坦的理论中没有什么能阻止时间旅行，通过它可以走向未来也能回到过去。

Incidentally, there is nothing in Einstein's theory that prohibits time travel, be it into the future or into the past.

youdao

顺便一说，在爱因斯坦的理论中没有什么能阻止时间旅行，通过它可以走向未来也能回到过去。

Incidentally, there is nothing in Einstein's theory that prohibits time travel, be it into the future or into the past.

youdao