Spelunks
v. 洞穴研究, 洞穴探险
🗣️ 情景例句
Oh no! It's five thirty.
哎呀 已经五点半了。
I'm afraid all my efforts were in vain.
我担心我的努力全白费了。
When I boarded the train, I could not help noticing that a great many local people got on as well.
上车后，我不禁注意到许多当地人也上了车。