Penetron
n. 介子
🗣️ 情景例句
How is your score in English?
你的英语成绩是多少？
We have mainly adopted some usual international practices.
我们主要采取了一些国际上的惯例做法。
That's right! A friend gave me a photo. I wanted to show it to you.
对！一位朋友给了我一张照片。我要拿给你看看。