英汉词典

1. 下巴；下颌
    Your jaw is the lower part of your face below your mouth. The movement of your jaw is sometimes considered to express a particular emotion. For example, if your jaw drops, you are very surprised.

    e.g. He thought for a moment, stroking his well-defined jaw...
           他摸着自己轮廓分明的下巴想了一会儿。
    e.g. Meg's jaw dropped in amazement...
           梅格惊讶得目瞪口呆。

2. 颌
    A person's or animal's jaws are the two bones in their head which their teeth are attached to.

    e.g. ...a forest rodent with powerful jaws.
           颌骨发达的森林啮齿类动物

3. 危险的局面；令人不快的情形
    If you talk about the jaws of something unpleasant such as death or hell, you are referring to a dangerous or unpleasant situation.

jaw的解释

    e.g. A family dog rescued a newborn boy from the jaws of death.
           一只家养犬把一个新生男婴从鬼门关救了回来。
    e.g. ...caught in the jaws of world recession.
           陷入全球性经济衰退的危机之中

4. to snatch defeat from the jaws of victory -> see snatch
    to snatch victory from the jaws of defeat -> see snatch