adj. 过去的,以前的;结束的;前任的;
n. 过去,过往;往事;[语]过去时;
prep. 超过,超出;远于;越过;
adv. 经过,超过;
🗣️ 情景例句
Hi, Bob.
嗨,鲍勃。
I'm behind in my work.
我工作进度落后了。
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.