夏季过高的温度和冬季降雪量减少的综合因素导致了雪线的后退。

A combination of higher summer temperatures and lower winter snowfall is causing the retreat.

youdao

夏季过高的温度和冬季降雪量减少的综合因素导致了雪线的后退。

A combination of higher summer temperatures and lower winter snowfall is causing the retreat.

youdao