Or maybe yesterday, I don't know.

也许是昨天，我不知道。

youdao

Or maybe yesterday; I can't be sure.

也许是昨天，我不知道。

youdao

Maybe yesterday, maybe the day before yesterday.

也许在昨天，也许在前天。

youdao

"Buildings in Jakarta are built to withstand horizontal acceleration of about and this earthquake which just happened yesterday maybe about five percent of gravity,"

VOA: standard.2009.09.07

It occured to me yesterday in my class that maybe someday there won't be social security numbers anymore, and on birth everybody will be given an e-mail address.

我昨天上课的时候想到,或许有天大家出生时,得到的将不是社会福利号码,而是一个邮箱地址。

麻省理工公开课 - 电影哲学课程节选

More and more people who maybe yesterday would've been in a nursing home are being cared for at home.

CNN: Help for a 'hidden population' of caregiving kids

Is it important to you that your songs are the kind that you can just pop in in 10 years and it just sounds like maybe it was made yesterday?

NPR: Joe Henry Is a Still Driving Man

Or maybe you were traveling yesterday.

WHITEHOUSE: Press Briefing