Barion
重子, 激子(激发核子)
🗣️ 情景例句
There's always a friend around when you need one.
当你需要朋友帮忙的时候，总会有朋友在你身边的。
No,I'm not married.I'm still single.
没有,我没结婚，仍然是单身.
Then he put a piece of cheese in his pocket and went away.
然后把一块乳酪装进衣袋里走了。