It was Sunday yesterday.

昨天是周日。

youdao

It was Sunday yesterday and I was very busy.

昨天是星期天我很忙。

youdao

Yesterday was Sunday.

昨天是星期天。

《牛津词典》

Yesterday was Sunday, I didn't go to school, but I was busy.

昨天是星期日，我没有去上学，但我很忙。

youdao

Yesterday was Sunday and it was a nice day.

昨天是星期天，天气非常宜人。

youdao

Yesterday was Sunday and it was a nice day.

昨天是星期天，天气非常宜人。

youdao