Little boys in white karate uniforms performing their martial arts indoors.
Kleine jongens in witte karate uniformen die hun vechtkunst binnen uitvoeren.
Boys dressed in karate uniforms are doing martial arts.
Jongens in karate uniformen doen vechtsporten.
To be in karate uniforms is the same as dressed in karate uniforms.
In karate uniformen zijn is hetzelfde als gekleed in karate uniformen.