snow是可数名词还是不可数名词

　　snow

　　n.雪;雪花;积雪;(某地或某时的)降雪量;一场雪

　　v.下雪;(用花言巧语)蒙，唬

　　例句：

　　Snow has prevented communication with the outside world for three days.

　　大雪使得与外界的通信联系中断了三天。

　　After today's heavy snow, many roads are still blocked.

　　今天下过大雪，很多道路仍然堵塞。

　　I remember one time we had to abandon our car in the snow.

　　我记得有一次我们迫于无奈把汽车丢弃在雪地里。

　　In this area there is snow cover for six months of the year.

　　这个地区一年中有六个月被积雪覆盖。