这两个动词均含“装饰”之意。
decorate : 普通用词，指对人或物进行装饰，使之更加完美。
- They decorated the wedding car with ribbons and flowers.
他们用彩带和鲜花装点婚车。 - They decorated the room with flowers and balloons.
他们用花和气球装饰了房间。 - The cake was decorated to look like a car.
这蛋糕装饰得像一辆汽车。
ornament : 指装饰以精美之物，使某处或某物增添美丽的或景色。
- She ornamented her letters with little drawings in the margin.
她在信的页边空白处画上小图案来作装饰。 - a room richly ornamented with carving
雕饰得富丽堂皇的屋子
