有来无回 One-way trip
Explanation
比喻去了就回不来，也比喻彻底消灭，不复存在。
It means that one cannot return after going, and it also means complete annihilation, no longer existing.
Origin Story
传说在很久以前，有一个古老的部落生活在深山老林里。这个部落的人们世代居住在这里，与世隔绝，过着平静的生活。然而，有一天，一股强大的外敌入侵了他们的家园。部落首领带领族人们奋起反抗，但敌人的实力过于强大，部落最终还是被摧毁了。这场战争，让部落中的所有人战死沙场，没有一个人能够逃脱，从此，这里变成了一个有来无回的地方，成为了人们心中的一个悲剧。那些曾经勇敢的战士们，他们的英勇事迹，成为了部落里永远的传说，成为了部落人们心中永恒的痛。
Legend has it that a long time ago, there was an ancient tribe living in the deep mountains and forests. The people of this tribe lived there for generations, isolated from the world, and lived a peaceful life. However, one day, a powerful foreign enemy invaded their homeland. The tribal leader led the people to resist bravely, but the enemy's strength was too strong, and the tribe was eventually destroyed. This war caused everyone in the tribe to die on the battlefield, no one could escape, and from then on, this place became a place with no return, becoming a tragedy in people's hearts. The brave warriors and their heroic deeds became an eternal legend of the tribe and eternal pain in the hearts of the people of the tribe.
Usage
常用作宾语，指单程事物，或彻底被消灭。
Often used as an object, it refers to a one-way thing, or complete annihilation.
Examples
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敌军来犯，势必有来无回。
di jun lai fan shi bi you lai wu hui
If the enemy attacks, it will be a one-way trip.
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这条路，是条有来无回的路，所以你得想清楚。
zhe tiao lu shi tiao you lai wu hui de lu suo yi ni de xiang qing chu
This is a one-way road, so you have to think it through.