Alpha partical
[电] α粒子
🧩 词语组成解析
alpha
['ælfə]
n. 希腊字母的第一个字母;
[电] 质点
🗣️ 情景例句
Four o'clock at the advanced exercise class. With me.
四点钟去高级健身课， 跟我一起。
Did you see Mr. Jones yesterday?
你昨天看见琼斯先生了吗？
The temperature drops to -- 30 o and very few people attempt to cross the Pass.
气温下降到零下30度，试图跨越山口的人寥寥无几。