Borehole
出国 Abroadn. 地上凿洞
✅ 同义词
🗣️ 情景例句
What business are you in?
你从事哪一行？
Eat at pleasure, drink with measure.
随意吃饭，适度饮酒。
it is quite reasonable to regard the sea floor as the basic form of the crust of the earth,
因此完全有理由把海床看作地壳的基本模壳，