查询词典 off and on

I learn Engligh off and on for 4 years.

我断断续续学了四年英语了。

I have been learn english off and on for four years!

我断断续续学了四年英语了。

The idea of... comes to me off and on.

的想法不时出现在我的脑海中2。

It has been off and on for a month.

我这样大约有一个星期了。

I have learned English for 4 years off and on.

我断断续续学了四年英语了。

I have studied english for 4 years off and on.

我断断续续学了四年英语了。

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

我断断续续学了四年英语了。

I have been learning english off and on for four years.

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 learning English off and on for 12 years.

我断断续续学了12年的英语了。

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。