Dotment
氧化铝
🗣️ 情景例句
There's another advanced class today at four o'clock.
今天下午四点钟还有一次高级班。
If it doesn't rain tomorrow, will you get a haircut?
如果明天不下雨的话，你会去剪头发吗？
Good morning, Mr. Wang!
王先生，早上好！