1. 装饰;装点;点缀
    If you decorate something, you make it more attractive by adding things to it.

    e.g. He decorated his room with pictures of all his favorite sports figures...
           他用自己最喜欢的几位体育明星的照片装饰房间。
    e.g. Use shells to decorate boxes, trays, mirrors or even pots.
           用贝壳来装点盒子、托盘、镜子甚至是花盆。

2. 粉刷;油漆;裱糊
    If you decorate a room or the inside of a building, you put new paint or wallpaper on the walls and ceiling, and paint the woodwork.

decorate的解释

    e.g. When they came to decorate the rear bedroom, it was Jemma who had the final say...
           他们装修后面的卧室时，是耶马最后说了算。
    e.g. The boys are planning to decorate when they get the time...
           小伙子们正打算有时间油漆一下。

3. 美化
    If something decorates a place or an object, it makes it look more attractive.

    e.g. Constable posters decorate the walls.
           康斯太布尔风景画的海报装点着那些墙面。

4. 授予…勋章(或其他荣誉)
    If someone is decorated, they are given a medal or other honour as an official reward for something that they have done.

    e.g. He was decorated for bravery in battle.
           他因为作战英勇而被授予奖章。