我和詹姆斯已经多年没有联系了。

James and I have been out of touch for years.

《柯林斯英汉双解大词典》

我们已经有好几个月没有联系了。

We haven't had contact in months.

youdao

他们和我们好多年没有联系了。

We've been out of touch with them for ages.

youdao

It has no more connection with its author from birth on and roams the world on its own.

作品一旦创作成型就和作者没有联系了,它独立的存在着。

耶鲁公开课 - 文学理论导论课程节选

And in terms of doing this for your homework, I actually want to mention that in the back page of your notes I attached a periodic table that does not have electron configurations on them. It's better to practice doing electron configurations when you cannot actually see the electron configurations.

关于你们的作业，是在你们讲义的后面的页,我附上了一张,没有给出电子构型的周期表,最好联系一下做出电子构型,当你们实际上看不到,电子构型的时候。

麻省理工公开课 - 化学原理课程节选