流到了地上英语

They dropped to the ground.

要看上下文，如果是大家都听到了一声响，问啥东西掉了，就直接问What was that?如果确认对方没听到响声，要问啥东西掉了，就说Something dropped on the ground. Did you hear it?很负责的告诉你，英语里面一般不会问“什么东西掉到地上了？”，所以不管怎么译，只要是直译，听起来都非常不地道。但如果你是要写作业，非要直译的话，那就是What dropped on the ground?

他们掉地上了：They fell to the ground.

Water dropped from the umbrella to the floor.