Kerabitumen
[地质]油母岩质
🗣️ 情景例句
Young drivers are more likely to be involved in an accident.
年轻驾驶员更容易出事。
In college I majored in history, What was you major?
大学时我主修历史，你主修什么呢？
The majority of thepatients attending the medical out-patients departments of our hospitals
在医院门诊部看病的大多数人