Well, I received a letter in my mailbox saying that I'm supposed to return a book that I checked out back in January, it's called "Modern Social Problems".

嗯，我在邮箱里收到一封信，说我应该归还我一月份借的一本书，书名是《现代社会问题》。

youdao

NServiceBus was first released as an open source project back in January 2006.

NServiceBus的第一个版本是在2006年1月作为开源项目发布的。

youdao

We've also fixed 456 bugs since reaching the Feature-Complete milestone back in January.

自从1月份发布的 特性完整的里程碑版本以来，我们已经 修复了456个Bug。

youdao

"Back in December,January, February and March, we were losing close to 700,000 jobs a month,".

VOA: standard.2009.07.02

Posh boss Darren Ferguson attempted to bring him to London Road back in January 2008.

BBC: Frecklington aiming high at Posh

Back in January, Nagin promised to make lowering the murder rate a top priority.

CNN: Names of victims fill church's 'murder board'

If successful, the probe will return to Earth and parachute its samples back in January 2006.

BBC: Probe set for asteroid flyby