你到那里时他们已经离开了吗？

Had they left before you got there?

《牛津词典》

他们离开了，没有人发现那里的那些东西。

They were leaving. Nobody would ever find the stuff here.

youdao

他们打消了疑虑，赶着20辆马车离开了布利哲堡，直奔韦伯峡谷，也就是黑斯廷斯声称那里会有一条好走的小路，可以翻越崎岖的瓦扎茨山。

Reassured, the group of 89 emigrants left Fort Bridger with their 20 wagons and headed for Weber Canyon, where Hastings claimed there was an easy passage through the rugged Wasatch Mountains.

youdao