Collochemistry
胶体化学
🗣️ 情景例句
How old are you, Gerald?
Gerald，你今年多大啦！
They've already turned on the electricity.The house is ready.
他们已经开了电.房子是准备好了的。
The open sea was deep and mysterious,
无边无际的海洋深邃而又神秘，