十五分钟前你还认为人类在地球上是孤独的。

And fifteen minutes ago, you knew that people were alone on this planet.

youdao

你好，伙计！ -米奇，休息时间在十五分钟前就结束了！

Hey, buddy! -break was over fifteen minutes ago, Mitch!

youdao

玛莉：哇！十五分钟前，宴会上的客人我都还不认识， 现在我已经被介绍给每个人认识了。

Mary:>Wow! Fifteen minutes ago, I didn't know anyone at the party. Now I'm being introduced to everyone!

youdao