如果我有时间机器，我会去未来看看科技发展成什么样子了。

If I owned a ___time-machine, I'd travel to the future to see how technology has advanced.

翻看这些老照片就像坐上了时光机，带我回到大学时代。

Looking at these old photos feels like stepping into a ___time-machine that takes me back to my college days.