Ballistics
n. 弹道学, 发射学\\n[化] 弹道学
📖 牛津释义
ballistics
n[sing v]
study of things that are shot or fired through the air, eg bullets, missiles, etc 弹道学（对射击或发射之物如子弹、导弹等的研究）
[attrib 作定语]
a ballistics expert 弹道学专家.
🗣️ 情景例句
I certainly am. May I help you?
我是，我能帮您什么忙吗？
Teaching others teaches yourself.
教学相长。
Really? If you are ill, you must see the doctor.
真的吗？如果是生病了，你得去看医生。