Barion
重子, 激子(激發核子)
??? 情景例句
Butter, nice and cold and hard.
牛油 新鮮又冷又硬。
I dropped the letter in the mailbox on the corner.
我把信放到角落上的郵箱里。
It's er … oh, I can't find it!
票，嗯……啊，找不到了！