What a fortuitous circumstance!

多碰巧的事情啊！

Our encounter is certainly fortuitous.

我们的邂逅无疑是偶然的。

Your call came at the fortuitous time.

你的电话来得正是时候。

Their success is the result of a fortuitous combination of circumstances.

他们的成功是各种环境因素的幸运产物

Their success is the result of a fortuitous combination of circumstances.

他们的成功是地利之果。

That was a fortuitous question.

那是一个偶然的问题。

A fortuitous encounter!

偶然的一次相遇！

Happening by chance or accident; fortuitous.

或有的，偶然的，意外的。

You're not fortuitous, and existence needs you.

你不是偶然的。存在需要你。