Cohydrol
石墨的胶态溶液
🗣️ 情景例句
Oh, I'd like you to meet my sister-in-law Marilyn.
噢 我来向你介绍我嫂子Marilyn。
I used to be a pilot. Now, I'm a parachutist.
我曾经做过飞行员，如今是伞兵了。
It was my pleasure.
不用谢。