Graphene
n. 石墨的单原子层
🗣️ 情景例句
I don't like charades.
我不喜欢哑谜。
What shall I send hin for his anniversary?
我要送他什么东西作为周年纪念礼物？
The weeks passed and the grass grew.
几个星期过去了，草长了起来。