Felsic
长英矿物
🗣️ 情景例句
Don't ask why; just do as you are told.
别问为什么， 按要求去做就行了。
I have forgotten his telephone number.
我忘记了他的电话号码。
First turn the gas off and cover the pan.
首先，把煤气关上，盖上油锅。