Paleotectonics
古地质构造学
🗣️ 情景例句
I've seen pictures of him.
我见过他的照片。
It is good to be merry at meal.
席间心情愉快是为上策。
With all these mouths to feed, he didn't know what to do.
由于有那么多人要供养，他不知道怎么办才好。