例句：
We skip rope, play cards and ball and so on.
我们跳绳，打牌和球等等。
Stay away from windows, large mirrors and so on.
远离窗户，大镜子等等。
Then we saw elephants, zebras, horses and so on.
然后，我们看了大象，斑马，马等等。
And I will end just on this note.
我以此做结尾。
No, you are just on time.
不，你刚好准时到。
At last the spotlight is just on him.
这一次，他终于可以独享闪光灯了。
A neon sign flashed on and off above the door.
门上方霓虹灯忽明忽暗地闪烁着。
The rugby tour was a disaster both on and off the pitch.
这次橄榄球巡回赛在场上、场下都彻底失败。
I was still working on and off as a waitress to support myself.
我仍然有时做女招待来维持生活。