stop to do停下来去做另一件事
I stop to have a rest.
She stops to listen to the teacher.
She stopped to talk.
We stop to have dinner.
They stop to play a game.
stop doing停止正在做的事
we stopped talking when the teacher came in.
Stop playing !Let's begin our class.
Stop smoking!It's forbidden.
stop playing games.you'd better do your homework first.
I stopped riding when I met a friend.