The boats remain at sea for an average of ten days at a time.

这些船平均每次在海上呆10天。

《柯林斯英汉双解大词典》

In the Middle Ages, before modern banking and credit instruments, people saved money at home, a few coins at a time dropped into a jar or dish.

中世纪时期，现代银行和信用工具出现之前，人们在家里存钱，一次丢几个硬币到罐子或盘子里。

youdao

Through this process, he becomes addicted to alcohol at a very young age, but at the same time he learns something about language.

通过这个过程，他在很小的时候就对酒精上瘾了，但同时他也练就了驾驭语言的一些能力。

youdao

Later,she began spending three months at a time with friends and relatives so she could attend other area schools.

VOA: special.2010.06.27

This doesn't happen, but at the same time it's a world of illusion in which the reader lives all too comfortably. Right?

这些不会发生，但是同时这是一个幻境,读者太舒适地生活于其中，对吧？

耶鲁公开课 - 文学理论导论课程节选

So I started to talk to the VCs and asking for $10 million at a very, very difficult time in Internet history.

就在互联网历史上最艰难的时期，我开始跟风险投资商接洽，向他们要1000万美元。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

Mr Jenkins was in charge at Barclaycard at a time when PPI was mis-sold.

BBC: Barclays boss 'shreds' Bob Diamond legacy

We can change the world one person at a time and one drink of water at a time.

WHITEHOUSE: Dream Big: Water

We started small, building our company and our brand one book at a time, one day at a time.

FORBES: Entrepreneurial Life: Tales of a Young Bookseller