Definition
When opposing parties or individuals with firearms choose to resolve their conflict through mutual gunfire until one party is either defeated or eliminated.
（敌对双方）互相开枪射击，以分胜负或死亡
Around the corner in a western town, two gangs decided to shoot it out in the street to settle their dispute; I heard they were going to open fire there.
在一个西部小镇的街角，两个帮派决定在街上开枪解决他们的争端；我听说他们要在那里开火。
Faced with an irreconcilable conflict, both nations' armies chose to shoot it out, planning to engage in gunfire at the border.
面对无法调和的冲突，两国的军队选择开枪解决，计划在边境交火。
In the tense climax of the movie, the protagonists shoot it out with the opposing forces, having to determine who will ultimately prevail.
在电影紧张的高潮中，主角们与敌对势力开枪对决，必须决定谁将最终胜出。