Spelunked
v. 洞穴研究, 洞穴探险
🗣️ 情景例句
but we have to get going
但我们必须走了，
We are used to working together.
我们习惯一起工作。
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。