2. at the actual place where something is happening 在现场
An ambulance was on the spot within minutes.
几分钟之内,一辆救护车便赶到现场.
an on-the-spot report
现场报道
3. in one exact place, without moving in any direction 在原地
Running on the spot is good exercise.
原地跑步是一种很好的锻炼.
In advance: 预先
I ought to have told you in advance.
我应该事先告诉你.
an easy prey:容易上当受骗的人
