There's trouble brewing between them.

他们之间正在酝酿着纠纷。

《新英汉大辞典》

There is trouble brewing.

纠纷在酝酿中。

youdao

There's trouble brewing up in the street.

街上正酝酿着一场动乱。

youdao

This year Worthington sees trouble brewing on the balance sheet of PacifiCare Health Systems.

FORBES: Pick One Stock

Stephen Worthington of Barbary Coast Capital Management sees trouble brewing on the balance sheet of PacifiCare Health Systems.

FORBES: Pick one stock

Ergo, there is trouble brewing in the movie theater sector, where attendance is down two years in a row.

FORBES: Moody's Sees Trouble For Movie Theaters; Blame Crappy Films