zero in

To aim or concentrate firepower on an exact target location.

調整歸零：通過重復射擊調整目標或視角

To converge intently; close in

專心注意，迫近

The children zeroed in on the display of toys in the store window.

孩子們的注意力都集中在商店櫥窗里陳列的玩具上