Pegmatolite
[矿]正长石
🗣️ 情景例句
We have to talk the matter over now.
我们必须讨论一下这件事。
Would you like me to get you a cab?
要我替你叫出租汽车吗？
for she had sixteen watertight compartments.
因为船由16个密封舱组成，