Alpha-activeity
[化] α放射性
🧩 词语组成解析
alpha
['ælfə]
n. 希腊字母的第一个字母;
🗣️ 情景例句
While sitting on the bus I often meet interesting people.
乘车时，我经常碰到一些有趣的人。
It's an incredible story to me.
这对我来说是一个无法相信的传闻。
It is nine o'clock.Mr.Sawyer usually reads his newspaper at night.But he's not reading his newspaper tonight.
现在是9点钟。索耶先生通常是在晚上看报，但今天晚上他没看报。