Adverb:

1. not regularly;

   "they phone each other off and on"
   

1.

1. 断断续续,间歇地：nowand then 时而,偶尔 |offandon 断断续续,间歇地 |off duty 下班

2. 断断续续地,不时地：occur to 被想到 . |offandon 断断续续地,不时地 . |and soon 等等 .

3. 时而;断断续续地：occur to 突然想到(一个主意等) |offandon 时而;断断续续地 |on a large/small scale 大批量;大规模川、批量;小规模

He had been work here,on and off,for two years.

他在这儿断断续续工作了两年。

I began to write intermittently and spasmodically.

我开始断断续续地写了起来。

The rebels made regular attacks on the railways.

叛军不时地袭击铁路。

He looked at the girl and smiled.

他看着那个姑娘并不时地朝她微笑。

We lived together, off and on, for two years.

我们断断续续在一起生活了两年。

She cried off and on all day.

她整天不时地哭.

It rains off and on.

雨忽而下,忽而停.

It drizzled off and on all day.

整日在时停时续地下着毛毛雨.

It was blowing and raining hard, off and on.

室外大风劲吹,大雨倾盆, 时断时续.

Perhaps secondhand cares, like second - hand clothes, come easily off and on.

或许二等角色的责任, 正如二道手的衣服一样, 穿上脱下都比较随便吧.

He has been writing to us off and on for several years.

他断断续续地给我们写信已经有好几年了.

He only accepted the primary education off and on in his childhood.

他小时候只断断续续地接受过初等教育.

He dropped in on us off and on.

他有时候路过来拜访我们.

Uncle George tippled off and on.

乔治叔叔偶而喜欢喝一杯.

It rained off and on all day.

断断续续下了一天雨.

Recently it rained off and on every day.

近来每天都在断断续续地下雨.

Yahoo ! and Microsoft have been talking, off and on, since last year.

微软公司在网络业务上与谷歌的差距更远.

They don go there often, just off and on.

他们不常去那里, 只是偶尔去. .

She has an off and on pain in the stomach.

她的胃疼好一阵,坏一阵.