1. The leaves of some plants have a ceraceous coating, which helps to reduce water loss. 一些植物的叶子上有一层蜡质的覆盖物，有助于减少水分的蒸发。
2. The ceraceous texture of the skin made it look smooth and shiny. 皮肤的蜡样质地使其看起来光滑而有光泽。