断断续续

I have learned English for years on and off.

我断断续续学了四年英语了。

I have been learning Enlish off and on for 4 years .

我断断续续学了四年英语了。

I have been studying English on and off for 4 years.

我断断续续学了四年英语了。

I have been learning English off and on for 12 years.

我断断续续学了12年的英语了。

I am studying english off and on for 4 years.

我断断续续学了四年英语了。

I have learned english for four years off and on.

我断断续续学了四年英语了。

He have is work here, on and off, for two year.

他在这儿断断续续工作了两年。

I've been learning English off and on for 4 years.

我断断续续学了四年了。

I learned English for 4 years off and on.

我断断续续学了四年英语了。

Needs – for i tance, a bank's need to increase revenue by getting the tellers to cro -sell more-and not form just re onding to intermittent training requests without sufficient analysis to determine the reason for that request.

培训必须源于公司的需求，例如，银行需要通过让柜台职员进行更多的交叉销售来增加其收入，而不仅仅是对断断续续的培训请求进行未彻底分析其原因的回应。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。