draw a bead on
成語所屬單字bead
draw a bead on — 慣用語
1. to aim a weapon, especially a gun, very carefully at a person or thing before fi
1.慣用語
釋義
瞄準（用槍）
to aim a weapon, especially a gun, very carefully at a person or thing before firing.
例句
The hunter drew a bead on the deer but lowered his rifle at the last moment.
Police snipers drew a bead on the suspect from a nearby rooftop.