Rishon
n. [核]里肖恩(构成夸克和轻子的假设基本粒子)
🗣️ 情景例句
Is the tip included in the bill?
账单里包括小费吗？
Good morning.
早晨好！
What will be the population of the world in the year 2000?
2000年世界人口将是多少？