洒盐可能不如撒沙子，对环境好。扫雪是个力气活，我估计就扫几条，给俩车轱轳和行人就行了。

若轱辘中间太厚也够呛。

Enjoy a white Christmas! Writing letters in snow. Build snow man, snow house, before the snow melts. Children would love it. :)