These clashes could develop into open warfare.

这些冲突可能会发展成公开的战争。

Clashes broke out between police and demonstrators.

警方与示威者发生了冲突。

Students were involved in violent clashes with the police.

学生和警察发生了暴力冲突。

Unfortunately your party clashes with a wedding I'm going to.

不巧得很，你的聚会和我要参加的婚礼在时间上有冲突。