1. streets unpassable because of piles of unmelted snow. 街道因堆积着大量未融化的积雪而无法行走。
2. Thus it is doubted as the snow unmelted through winter. 人们怀疑那是未融的积雪停驻在冬天。
3. This idea was later discounted, though, following the discovery of unmelted, largely intact meteorites from the moon and Mars. 不过，随之发现未熔化且状态大致完好的月球与火星陨石，这个想法后来便无人问津。
