n.十字丝；十字准线；准星；目标
The crosshair is reduced to a dot. 准星缩减为一个点。
I study very very hard.I have HBS in my crosshair. 我非常努力的学习，目标是为了上哈佛。
(瞄准镜)十字准线, 交叉丝,瞄准器
