Petrographic
a. 巖相學的；巖類學的
??? 情景例句
It's nothing.
這沒什么。
Fooling around
閑蕩
Quick! said Li Lei. Lucy and Wei Hua, go round that corner and stop the traffic.
“快！”李壘說，“露茜和魏華，去那拐彎處攔住車輛”。