1. (脸上的)皱纹
    Wrinkles are lines which form on someone's face as they grow old.

    e.g. His face was covered with wrinkles...
           他的脸上布满了皱纹。
    e.g. Some deep wrinkles furrow his lower forehead.
           他额头下方出现了几道深深的皱纹。

2. (使)（皮肤）起皱纹
    When someone's skin wrinkles or when something wrinkles it, lines start to form in it because the skin is getting old or damaged.

    e.g. The skin on her cheeks and around her eyes was beginning to wrinkle.
           她两颊和双眼周围开始起了皱纹。
    e.g. ...protection against the sun's rays that age and wrinkle the skin.
           防晒以免皮肤老化起皱

3. （布或纸的）褶皱，皱痕，褶子
    A wrinkle is a raised fold in a piece of cloth or paper that spoils its appearance.

    e.g. He noticed a wrinkle in her stocking.
           他注意到她长筒袜上有一道褶儿。

4. （使）（衣服）起皱，起褶
    If cloth wrinkles, or if someone or something wrinkles it, it gets folds or lines in it.

    e.g. Her stockings wrinkled at the ankles...
           她的长筒袜在脚踝处起了褶儿。
    e.g. I wrinkled the velvet.
           我把天鹅绒布弄皱了。

5. (使)(鼻子、额头等)起皱
    When you wrinkle your nose or forehead, or when it wrinkles, you tighten the muscles in your face so that the skin folds.

    e.g. Frannie wrinkled her nose at her daughter...
           弗兰妮朝她女儿皱了皱鼻子。
    e.g. Ellen's face wrinkles as if she is about to sneeze.
           艾伦的脸皱了起来，好像要打喷嚏。