Rishon
n. [核]里肖恩(构成夸克和轻子的假设基本粒子)
🗣️ 情景例句
Her name's Gemma,
它叫做Gemma，
We exchange products under almost all circumstances.
在各种情形下我们都可更换产品。
The tunnel would be well-ventilated if tall chimneys were built above sea level.
隧道就具备了良好的通风条件。