Rishon
n. [核]里肖恩(构成夸克和轻子的假设基本粒子)
🗣️ 情景例句
There's nobody here!
这里一个人都没有
Competition for this kind of goods is tough.
这种商品的竞争非常激烈。
Yes, they're free. But there's usually a long line.
是的，免费。但常常要排长队。