Bineutron
双中子
🗣️ 情景例句
I continued to teach piano lessons at home.
我继续在家教钢琴。
Modesty is not only and ornament, but also a guard to virtue.
谦逊不仅可增添光彩也可以维护美德。
The English and Maths papers weren't easy enough for me.
英语和数学试题对我来说不很容易。