Graphene
n. 石墨的单原子层
🗣️ 情景例句
They're open.
店开着。
What would you like to eat?
你想吃什么呢？
Yesterday the firemen examined the ground carefully, but were not able to find any broken glass.
昨天，消防队员仔细查看了地面，但未能发现碎玻璃。