射击学 shèjīxué ballistics Definitions Defs Origin Strokes Stroke Words Sentences Sents 射击学 射擊學 shèjīxué ballistics the study of the movement of projectiles, such as bullets or shells; gunnery
射击学 射擊學 shèjīxué ballistics the study of the movement of projectiles, such as bullets or shells; gunnery
