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
It's OK, lady. Take your time.
没关系， 太太。慢慢来。
A man becomes learned by asking questions.
要长学问，就得多问；多问则业精。
Hello, Jim! Help yourself to a cake.
你好，吉姆！请随便吃糕点。