Polylitharenite
复岩屑砂屑岩
🗣️ 情景例句
I think I'll need your expert assistance this afternoon.
我想，我今天下午需要你专业的协助。
Experience teaches.
经验给人教训。
Excuse me, please! Which is the way to the North Street Hospital?
请问，去北街医院怎么走？