infraction|infractions

裁判因为球员的一次轻微犯规吹响了哨子。

The referee blew the whistle for a minor ___infraction by the player.

警察只对那些轻微的交通违规行为开出了警告。

The police issued warnings only for minor traffic ___infractions.

未戴头盔骑行属于交通违规行为。

Not wearing a helmet while cycling is considered a traffic ___infraction.