1. (使)咔嚓一声折断;(使)啪的一声绷断
    If something snaps or if you snap it, it breaks suddenly, usually with a sharp cracking noise.

    e.g. He shifted his weight and a twig snapped...
           他挪了一下身体的重心，一根树枝咔嚓一声断了。
    e.g. The brake pedal had just snapped off...
           刹车踏板刚刚啪的一声绷断了。

2. (使)发出吧嗒一声(合上或打开)
    If you snap something into a particular position, or if it snaps into that position, it moves quickly into that position, with a sharp sound.

    e.g. He snapped the notebook shut...
           他啪的一声合上了笔记本。
    e.g. He snapped the cap on his ballpoint...
           他吧嗒一声把笔帽扣在了圆珠笔上。

3. (打拍子、下指示等时)打响指
    If you snap your fingers, you make a sharp sound by moving your middle finger quickly across your thumb, for example in order to accompany music or to order someone to do something.

    e.g. She had millions of listeners snapping their fingers to her first single...
           百万听众和着她第一首歌的节拍打着响指。
    e.g. He snapped his fingers, and Wilson produced a sheet of paper...
           他打了个响指，威尔逊便递过一张纸来。

4. 恶声恶气地说;声色俱厉地说
    If someone snaps at you, they speak to you in a sharp, unfriendly way.

    e.g. 'Of course I don't know her,' Roger snapped...
           罗杰恶声恶气地说：“我当然不认识她。”
    e.g. I'm sorry, Casey, I didn't mean to snap at you like that.
           对不起，凯西，我不是有意要跟你凶的。

5. 突然精神崩溃;突然失控
    If someone snaps, or if something snaps inside them, they suddenly stop being calm and become very angry because the situation has become too tense or too difficult for them.

snap

    e.g. He finally snapped when she prevented their children from visiting him one weekend...
           当她不准孩子们在某个周末去看他的时候，他终于控制不住自己了。
    e.g. For the first and only time Grant's self-control snapped...
           生平第一次也是唯一的一次，格兰特失控了。

6. (狗等动物)突然咬，猛咬
    If an animal such as a dog snaps at you, it opens and shuts its jaws quickly near you, as if it were going to bite you.

    e.g. His teeth clicked as he snapped at my ankle...
           它猛地朝我的脚脖子咬下去，牙齿还咔咔直响。
    e.g. The poodle yapped and snapped.
           卷毛狗又吠又咬。

7. (决定、行动等)突然的，仓促的，鲁莽的
    A snap decision or action is one that is taken suddenly, often without careful thought.

snap的意思

    e.g. I think this is too important for a snap decision...
           我认为，这件事非常重要，不能仓促作决定。
    e.g. It's important not to make snap judgments...
           不要急于作出判断——这一点很重要。

8. 照片
    A snap is a photograph.

    e.g. ...a snap my mother took last year.
           我母亲去年拍的照片

9. 给…拍照
    If you snap someone or something, you take a photograph of them.

    e.g. He was the first ever non-British photographer to be invited to snap a royal.
           他是有史以来第一个应邀为王室成员拍照的非英籍摄影师。

10. “捉对儿”(一种简单的扑克牌游戏，参加者轮流亮牌叠成一叠，争取在出现同点数或同人头的两张牌时，先喊snap以赢得整叠牌)
    Snap is a simple British card game in which the players take turns to put cards down on a pile, and try to be the first to shout 'snap' when two cards with the same number or picture are put down.

11. “哟！”(对两件物品相似之极发出的惊叹)
      You can say 'Snap!' as an expression of surprise when you realize that two things are the same or very similar, for example if you meet a friend wearing the same shirt as you.

12. 同 snap fastener
      A snap is the same as a snap fastener .

13. see also: cold snap

相关词组：snap out ofsnap up