extension

我已经申请了签证延期。

I've applied for an ___extension to my visa.

她请求了项目截止日期的延期。

She requested an ___extension for her project deadline.

教授批准了我论文的延期。

The professor granted me an ___extension on my essay.

请拨打分机号3104找我。

Call me on ___extension 3104.

欲知详情，请致电020-7946转分机58。

For more details, please call 020-7946 ___extension 58.

请问能帮我转接到分机225吗？

Could you transfer me to ___extension 225, please?

这本书是他在早期文章中提出的想法的延伸。

The book is an ___extension of ideas he set out in an earlier article.

所以我们可以说电脑是我们大脑的延伸。

So we might say the computer is the ___extension of our brain.

这个移动应用是公司在线服务的延伸。

The mobile app is an ___extension of the company's online services.