Alphatron
α粒子电离压强计, α射线管
🗣️ 情景例句
I'm sorry, I really don't know.
对不起，我真的不知道。
Let's stop discussing trivial details and come to the point.
咱们别再谈琐碎细节了，说正事吧。
I'll be there next Monday at noon.
下个星期一中午吧。