想想，两辆车相撞-，它们相撞。

Think of them as the two car wrecks — they go into each other.

youdao

大小没有改变，它们现在开始运动，头碰头相撞。

No change in the Numbers except that they go now head-on.

youdao

这种（相撞）事故很少见，不过就算在不影响安全的前提下它们也可以变得更少见。

But they can and should be made rarer. That can be done without compromising security.

youdao

这种（相撞）事故很少见，不过就算在不影响安全的前提下它们也可以变得更少见。

But they can and should be made rarer. That can be done without compromising security.

youdao