Speleology
[ [ˌspi:li'ɔlədʒi] ]
出国 Abroad
n. 洞穴学
📝 例句
physical speleology
天然洞穴学
✅ 同义词
📖 牛津释义
speleology
(also spelaeology), n [U]
1 scientific study and exploration of caves 洞穴学.
2 sport of walking in and exploring caves 洞穴探险（运动）.
🗣️ 情景例句
Nice to meet you.
幸会。
Do not to others what you do not wish them to do to you.
己所不欲，勿施于人。
I waited till he came near, then I asked him the way to our old village.
等他走近了，问他去老家的路。