1. 淤伤；青肿
    A bruise is an injury which appears as a purple mark on your body, although the skin is not broken.

    e.g. How did you get that bruise on your cheek?...
           你脸上的淤伤是怎么搞的？
    e.g. She was treated for cuts and bruises.
           对她身上的伤口和淤伤进行了处理和治疗。

2. 碰伤；擦伤
    If you bruise a part of your body, a bruise appears on it, for example because something hits you. If you bruise easily, bruises appear when something hits you only slightly.

    e.g. I had only bruised my knee...
           我只是把膝盖给碰伤了。
    e.g. Some people bruise more easily than others.
           有些人比其他人更容易被碰伤。

3. (将)(蔬菜、水果或植物）碰伤
    If a fruit, vegetable, or plant bruises or is bruised, it is damaged by being handled roughly, making a mark on the skin.

    e.g. Choose a warm, dry day to cut them off the plants, being careful not to bruise them.
           选一个干燥暖和的日子把它们从植株上割下来，注意不要碰伤它们。
    e.g. ...bruised tomatoes and cucumbers...
           被碰伤的西红柿和黄瓜

4. 挫伤；伤害
    If you are bruised by an unpleasant experience, it makes you feel unhappy or upset.

bruise的意思

    e.g. The government will be severely bruised by yesterday's events.
           昨天的事件将会让政府严重受挫。
    e.g. Their egos are so easily bruised.
           他们的自尊心很容易受到伤害。