Stratigraphy
n. 地层学, 地层情况\\n[医] 体层X线照相术, 断层X线照相术
🏥 医学释义
体层X 射线照像术，断层X 射线照像术
🗣️ 情景例句
He did everything within his power to achieve the goal.
他竭尽全力去实现目标。
The frog in well knows nothing of the great ocean.
井底之蛙不知汪洋大海。
What do you find hardest in English?
你觉得学习英语哪方面最难？