“不打不相识”的英文表达为“meet and know each other through fighting”。这个表达非常地道，常用于描述两个原本陌生的人因为某种冲突或争执而相互认识，最终成为朋友或伙伴。
场景一：两位拳击手在比赛中不打不相识，最终成为好朋友。
英文表达：Two boxers met and knew each other through fighting in the ring, and eventually became good friends.
场景二：两位在执行任务时发生了冲突，但最终通过互相了解和合作，成为了亲密的战友。
英文表达：Two officers met and knew each other through a conflict while on duty, but eventually became close战友 through mutual understanding and cooperation.
场景三：两位年轻人在街头发生争执，但最终通过交流和理解，成为了无话不谈的朋友。
英文表达：Two young people got into a dispute on the street, but eventually became good friends after communicating and understanding each other.
“不打不相识”这个成语在英文中并没有完全对应的表达，但“meet and know each other through fighting”这个表达非常接近，可以用于描述这种特殊的相遇方式。在实际应用中，我们可以根据具体场景和语境进行适当的调整和变化，以更准确地传达意思。
除了上述三个场景，我们再来举几个例子，进一步说明“不打不相识”的英文表达：
例一：两位商业竞争对手在商场上互相竞争，最终因为彼此的竞争而互相了解，成为了合作伙伴。
英文表达：Two business compes met and knew each other through competition in the market, and eventually became partners.
例二：两位运动员在比赛中发生了冲突，但最终通过互相学习和交流，成为了互相尊重的竞争对手。
英文表达：Two athletes got into a conflict during the competition, but eventually became respected compes after learning and communicating with each other.
例三：两位艺术家在创作过程中发生了分歧，但最终通过互相欣赏和借鉴，成为了互相启迪的合作伙伴。
英文表达：Two artists had differences in their creative processes, but eventually became inspiring partners after appreciating and learning from each other.
“不打不相识”这个成语虽然没有直接的英文对应表达，但“meet and know each other through fighting”这个表达已经相当接近，可以用于描述这种特殊的相遇方式。在实际应用中，我们可以根据具体场景和语境进行适当的调整和变化，以更准确地传达意思。我们也可以通过其他表达方式，如上述例子所示，来更生动地描述这种相遇方式，让英文表达更加地道和自然。