Graphene
n. 石墨的单原子层
🗣️ 情景例句
She doesn't know we've changed hotels.
她不知道我们换了旅馆呀。
What's your brother planning to do tomorrow?
你的兄弟计划明天做什么？
The children pulled the boat up from the water. Then they started to look around the island.
孩子们把船从水中拉了上来。然后他们开始察看海岛的四周。