The lie of the land and natural waterways made it relatively easy to build canals.这片土地的地形和天然水系使修建运河变得相对容易。The softness of gold makes it relatively easy to use for ornamental purposes.金子柔韧，所以相对容易用于做饰品。The system is relatively easy to use.这个系统使用起来相对容易。