怎么理解这个独立短语呢?their breath white in the frosty air.
问题描述：
怎么理解这个独立短语呢?their breath white in the frosty air.
The hunters rested for a moment in front of the shack,their breath white in the frosty air.
答
The hunters (主语）rested （谓语）for a moment（时间状语） in front of the shack（地点状语）,their breath white in the frosty air（独立短语,作主语的补足语,补充说明hunters的情况.