Neutronics
中子物理学; 中子学
🗣️ 情景例句
and giving up your free time.
放弃了你的闲暇时间。
I see. Let's break now.
我了解，让我们休息一下吧。
It's a waste of time reading that book. It's rubbish.
看那本书真是浪费时间。那简直是垃圾。