They shared a common interest in botany.

他们都对植物学感兴趣。

Henceforward Utah and Idaho had a common interest.

此后犹他州和爱达荷州有了一项共同利益。

They share a common interest in photography.

他们在摄影方面兴趣相投。

The two sides held talks on questions of common interest.

双方就共同关心的问题进行了会谈。

It serves our common interest.

这符合我们的共同利益。