Petrography
出国 Abroadn. 岩相学
🗣️ 情景例句
Yes, I have a terrible cold.
是的，我得了重感冒。
Let the hands get busy, not the mouth.
手要勤劳，嘴莫多说。
The train was traveling at 120 miles an hour.
火车时速一百二十英里。