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
The rings, please.
请戴戒指。
A crow is never the whiter for washing herself often.