Charmonium
[单复同]n.[核](被认为由一对粲夸克-反夸克构成的)粲素
🗣️ 情景例句
I don't know what you are driving at.
我不知道你到底想说什么。
There are seven of us altogether.
一共有7个。
Have you ever been bitten by a dog?
被狗咬过吗，你？