他们竟然分手了！

Tāmen jìngrán fēnshǒu le!

They unexpectedly broke up!

他上课睡了那么久竟然没有被老师发现！

Tā shàngkè shuì le nàme jiǔ jìngrán méiyǒu bèi lǎoshī fāxiàn!

In spite of him sleeping so long in the class, the teacher never found out!

他竟然没有接受你的邀请！

Tā jìngrán méiyǒu jiēshòu nǐ de yāoqǐng!

He unexpectedly didn't receive your invitation.