Zirlite
羟铝石, 三水铝矿
🗣️ 情景例句
I estimate his age to be about 30.
我估计他的年龄大约30岁。
We are anxious to know how long it will take you to deliver the goods.
我们急于知道贵方多长时间能交货。
While he was eating, I asked him to lend me twenty pounds.
当他吃饭时，我提出向他借20英镑。