他们的生日巧合在同一天。

Their birthdays coincide on the same day.

这些事件先后发生在同一天。

These events happened on the same day successively.

他的出生日期和我的在同一天。

His birthdate is on the same day as mine.

这两件事在同一天发生是巧合的。

The two events happening on the same day was coincidental.

无巧不成书，她和我在同一天生日。

There is no story without coincidences, she and I have the same birthday.

她在同一天丢了钱包，感到非常不幸。

She felt luckless when she lost her wallet on the same day.

我还记得音乐剧《头发》在同一天在百老汇上映。

I also remember that the musical play Hair opened on Broadway on the same day.

他们两人是在同一天来看我的。

They came to see me on the self-same day.

在同一天做可以建立一致性。

And doing it on the same day leads to community building!

他们在同一天出发去纽约了。

They left for NY on the same day.