Spelaeology
洞穴学
✅ 同义词
🗣️ 情景例句
Don't thank me.
别谢我。
The least said, the soonest mended.
（or Least said， soonest mended） 少说为佳。
he has just bought a new house in the city,
他刚在城里买下一所新房子，