1. 碎片;小块;一丁点儿
    A scrap of something is a very small piece or amount of it.

    e.g. A crumpled scrap of paper was found in her handbag...
           在她的手提包里发现了一张皱巴巴的小纸片。
    e.g. ...a fire fueled by scraps of wood...
           用木屑燃起的火

2. 残羹剩饭;吃剩的东西
    Scraps are pieces of unwanted food which are thrown away or given to animals.

    e.g. ...the scraps from the Sunday dinner table.
           星期天晚餐的残羹剩饭

3. 除掉;取消;废弃
    If you scrap something, you get rid of it or cancel it.

    e.g. President Hussein called on all countries in the Middle East to scrap nuclear or chemical weapons...
           侯赛因总统号召中东所有国家放弃核武器和化学武器。
    e.g. It had been thought that passport controls would be scrapped.
           人们曾认为会放开护照管制。

4. (金属、纸张)废弃的,报废的
    Scrap metal or paper is no longer wanted for its original purpose, but may have some other use.

    e.g. There's always tons of scrap paper in Dad's office.
           爸爸的办公室里总有大量的废纸。

5. (废旧机械或汽车的)废金属
    Scrap is metal from old or damaged machinery or cars.

scrap

    e.g. Thousands of tanks, artillery pieces and armored vehicles will be cut up for scrap.
           成千上万的坦克、大炮和装甲车将被切割成废金属。

6. (尤指不激烈的)斗殴，吵架
    You can refer to a fight or a quarrel as a scrap, especially if it is not very serious.

    e.g. Billy Bonds has never been one to avoid a scrap.
           比利·邦兹经常与球员发生拳脚冲突。