collision course

collision-course的词性：
n.（名词）

1. A course, such as that of moving objects or opposing philosophies, that will end in impact or conflict if permitted to continue unchanged or unabated:
碰撞过程：一个过程，如两个运动着的物体或相对立的哲学观点，如果持续不变或不减缓最终将碰撞在一起或引起冲突：

two planes on a collision course; dissidents on a collision course with the dictatorial regime.
碰撞过程中的两架飞机；持不同政见者与独裁统治的冲突