Spelunk
v. 洞穴探险, 洞穴研究
🗣️ 情景例句
OK, Carl.
好的 ，Carl。
If anyone here does one of these things, let me know.
这儿如果有人也喜欢打羽毛球或读书，请告诉我。
It is a world of red sandy deserts (hence its name----the Red Planet),
红色行星），