I have had it on and off for the past three years.
這樣斷斷續(xù)續(xù)地有三年了

on and off
斷斷續(xù)續(xù)
It rained on and off for the whole afternoon.
雨斷斷續(xù)續(xù)下了一下午。

A:What seems to be the problem?
哪里不舒服？
B:My stomach hurts,Doctor.
我胃疼，醫(yī)生。
A:Has this been a problem before?
以前有過這樣的問題嗎？
B:Yes.
有過。
A:For how long?
多久了？
B:I have had it on and off for the past three years.It's just got much worse these past two weeks.
這樣斷斷續(xù)續(xù)地有三年了。只是過去這兩個星期以來疼得比較厲害了。
A:Do you only feel this way when your stomach is empty?
您是只有在胃空的時候才有這種感覺嗎？
B:After I've eaten,it goes away for a while.
吃了東西以后，疼痛會消失一會。
A:Do you feel nauseous?
您感到惡心嗎？
B:Yes,occasionally.
是的，偶爾。
A:Let me take a look at your abdomen.Lie down on your back and bend your knees up.Ok,relax...Alright,it seems like you have a duodenal ulcer,but we'll have to run some tests before I can be certain.You should get a good rest first and try not to strain your stomach too much.
我來檢查一下您的腹部。仰著躺下，把腿蜷起來。好的，放松...好了，看上去好像是十二指腸潰瘍，不過我們需要做一些化驗才能確診。您首先應(yīng)該好好休息，盡量減輕胃的負(fù)擔(dān)。
B:Is it serious?
嚴(yán)重嗎？
A:Not too serious,but it'll take you some time to recover,so you'll need to be patient.
不太嚴(yán)重，但得一段時間才能康復(fù)，所以您要耐心點。