It’s time to start loosening the reins and letting their kids travel unsupervised to school.他们是时候放松控制，让孩子们自己去上学了。The kids were left unsupervised while their parents were out.父母外出时，这几个孩子无人看管了。All those children unsupervised sounds to me like a recipe for disaster.那些孩子全都没人看管，在我听来这会出大乱子。