Nanostructure
n. 纳米结构
🗣️ 情景例句
I see him on the train every day but we are not on speaking terms.
我每天都在火车上见到他，但彼此没有说过话。
His eyes will pop out in astonishment.
他因为害怕而瞪大了眼睛。
It's a pen.
一支钢笔。