Pegmatite
n. [地质]结晶花岗岩
🗣️ 情景例句
I'm not sure I'm up to it.
我不能肯定我是否能做得来。
Deeds are fruits; words are but leaves.
行动是果实，言语只是树叶而已。
Another time, possibly, but not Friday.
换个时间还有可能，但不要在星期五。