I saw her yesterday at the market.

我昨天在市场见到她了。

The meeting was scheduled for yesterday but was postponed.

会议原定于昨天举行，但被推迟了。

Yesterday was a very busy day for me.

昨天对我来说是非常忙碌的一天。

I'm still tired from yesterday's work.

我仍然对昨天的工作感到疲惫。