draw a bead on meaning in Chinese

向...瞄准

The hunter drew a bead on the large bird
猎人瞄准了一只大鸟。
The deer bounded into the forest before the hunters could draw a bead on them
猎人还未瞄准，那些鹿就跳回森林里去了。
Draw a bead on
用枪瞄准某人
It was pretty close to the shanty , and i thought i heard the old man coming all the time ; but i got her hid ; and then i out and looked around a bunch of willows , and there was the old man down the path a piece just drawing a bead on a bird with his gun
这里离木屋很近，我仿佛老觉得老头儿正在走回来。不过，我还是把独木小舟给藏了起来。接着，我走了出来，绕着一丛杨柳树，往四下里一张望，但见老头儿正沿着小径往下走来，正用他那枝枪瞄准了一只小鸟。