英汉词典

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。