雪堆

bills of sale───卖据

pipes of Pan───锅管

blanket of snow───积雪

flurry of snow───一阵大雪

lines of sight───[光][生理]视线；瞄准线

points of sale───销货点

covering of snow───积雪

It's been a challenging couple of weeks here in Minnesota -brutal temperatures and piles and piles of snow.───这几周对明尼苏达来说是个挑战—严酷的气温和成堆的积雪。

Winter wheat manages to survive freezing temperatures and being buried under piles of snow.───冬小麦设法在结冰的温度下生存，还要埋于厚厚的大雪下。

piles of snow still dotted the sidewalks of midtown Manhattan, where I stayed.───我下榻在曼哈顿中城，人行道上还散落着一堆堆积雪。

Intermittent piles of snow still dotted the sidewalks of midtown Manhattan, where I stayed.───我下榻在曼哈顿中城，人行道上还散落着一堆堆积雪。

But with the piles of snow that are pushed aside, the streets are only 60 % passable.

Outside, the huge piles of snow are melting.