zero in片语动词KK [ˋzɪro ɪn] /ˈzɪɹoʊ ɪn/发音片语动词1集中注意力、聚焦、锁定Investigators quickly zeroed in on the cause of the fire.调查人员很快就锁定了火灾的起因。2瞄准、对准The sniper zeroed in on the target and waited.狙击手瞄准目标后静静等待。3直奔、径直朝……而去The missile zeroed in on the abandoned warehouse.飞弹直奔那座废弃仓库而去。4校准、校正可拆开He spent the morning zeroing in his new rifle.他花了一上午校准他的新步枪。用这个字练口说→