Mesonic atom
[化] 介子原子
🧩 词语组成解析
a. meson的变形
🗣️ 情景例句
Susan and Harry have a sitter for Michelle in the city,
Susan和Harry在城里给Michelle找到一位临时保姆，
How much is a one-way ticket?
单程车票多少钱一张？
Where is Lucy's bag?
露茜的书包呢？