Nanocrystalline
n. 納米晶體；奈米晶
??? 情景例句
Having their origins in China, chopsticks are used in many Asian countries.
筷子起源于中國，現在很多的亞洲國家都使用它。
I ate vegetable soup for lunch yesterday.
我昨天晚飯吃的是蔬菜湯。
Yes, good idea.
好主意呀。