Beta decay
[医] β[质点]衰变
🧩 词语组成解析
n. 希腊字母表的第二个字母\\n[医] β(希腊文的第二个字母), 乙种
🗣️ 情景例句
Pete isn't home.
Pete不在家。
I invited him to come back, but he wouldn't.
我请他回来，但是他不肯。
Behind the house there is a tree.
房子后面有一棵树。