Petrographic
a. 岩相学的；岩类学的
🗣️ 情景例句
It's nothing.
这没什么。
Fooling around
闲荡
Quick! said Li Lei. Lucy and Wei Hua, go round that corner and stop the traffic.
“快！”李垒说，“露茜和魏华，去那拐弯处拦住车辆”。