be on a collision coursea. to be likely to have serious trouble because your aims are very different from someone else's〔因双方目标差异太大而〕很可能发生冲突，有可能导致严重争端:•The two nations are on a collision course that could lead to war.两国可能会发生冲突，从而导致战争。b. to be moving in a direction in which you will hit something朝着可能会碰撞的方向移动:•an asteroid on a collision course with Earth正朝着将和地球发生碰撞的方向移动的一颗小行星 |