zero in片語動詞KK [ˋzɪro ɪn] /ˈzɪɹoʊ ɪn/發音片語動詞1集中注意力、聚焦、鎖定Investigators quickly zeroed in on the cause of the fire.調查人員很快就鎖定了火災的起因。2瞄準、對準The sniper zeroed in on the target and waited.狙擊手瞄準目標後靜靜等待。3直奔、徑直朝……而去The missile zeroed in on the abandoned warehouse.飛彈直奔那座廢棄倉庫而去。4校準、校正可拆開He spent the morning zeroing in his new rifle.他花了一上午校準他的新步槍。