Alkalion
羟离子, 氢氧离子
🗣️ 情景例句
Oh, I'm glad you like it.
哦，知道你喜欢，我很高兴。
My wife and I still remember the first day we arrived in Beijing.
我太太和我仍然记得到北京的第一天。
What was wrong?
怎么啦？