Rishon
n. [核]里肖恩(构成夸克和轻子的假设基本粒子)
🗣️ 情景例句
I took a month off for a holiday.
我休了一个月假。
It's a beautiful country with many large lakes.
这个国家很美，它有很多湖泊。
Those flowers are lovely, too.
这些花也很漂亮啊。