collision course

柯林斯词典

1. N-SING If two or more people or things are on a collision course, there is likely to be a sudden and violent disagreement between them. 可能发生冲突的状态[usu 'on a' N, oft N 'with' n]
The two communities are now on a collision course. 这两个社区现在处于可能发生冲突的状态。
2. N-SING If two or more people or things are on a collision course, they are likely to meet and crash into each other violently. 可能发生碰撞的航向[usu 'on a' N, oft N 'with' n]
There is an asteroid on a collision course with the Earth. 有个小行星正处于可能与地球发生碰撞的航向上。