ramps

This may be especially suitable in providing a nonslip surface on ramps in cold climates.

这可能特别适用于在寒冷气候道提供一种防滑表面处理。

Grab the pencil tool and construct tracks filled with ramps, hills, and jumps, and then send your virtual sledder down the route.

抓斗铅笔工具，并构建轨道描完成斜路，丘陵，跳跃，然后把你的虚拟游戏者拉下来到航动。