time machine

A hypothetical device or concept that allows travel backward or forward through time, often used in science fiction literature and media.

• 🇨🇳一种假想中的装置或概念，能够让人回到过去或前往未来，常用于科幻文学和影视作品中。

1. Fictional device B1 formal

   A hypothetical device that allows travel into the past or future.

   • The scientist built a time machine in his laboratory.
   • In the movie, the hero uses a time machine to change history.
   • If I had a time machine, I would visit ancient Rome.

   🇨🇳时间机器