We only want to remove the top layer, the powder snow.

我们只需要移除最上面的一层，粉状的雪。

Guides want to move away from clients having particular objectives, such as climbing a specific mountain on a certain day or riding fresh powder snow.

导游们希望避开那些有特定目标的客户，比如在某一天要爬某座山，或者要赶上新鲜的雪天。