He was a flash in the pan.

他真是昙花一现啊。

His first novel was a flash in the pan.

他的第一部小说只是昙花一现。

I thought it was all a flash in the pan.

我曾认为一切都只是昙花一现。

A flash in the pan.

昙花一现。

The rock group was only a flash in the pan.

这个摇滚乐队只是昙花一现。