英汉词典

1. (固定在墙上或橱柜上的)架子，搁板
    A shelf is a flat piece of wood, metal, or glass which is attached to a wall or to the sides of a cupboard. Shelves are used for keeping things on.

    e.g. He took a book from the shelf.
           他从书架上拿了一本书。
    e.g. ...the middle shelf of the oven.
           烤箱的中间搁板

2. 搁板状岩石;突出的岩石;(水下的)暗礁，陆架
    A shelf is a section of rock on a cliff or mountain or underwater that sticks out like a shelf.

shelf什么意思

    e.g. The house stands on a shelf of rock among pines.
           房子矗立在松树丛中一块突出的岩石上。

3. 现成的;不用定制的
    If you buy something off the shelf, you buy something that is not specially made for you.

    e.g. Any car you can buy off the shelf in a pastel pink has got to be saying something.
           现货供应的任何一辆淡粉色汽车一定都有自己的卖点。
    e.g. ...off-the-shelf software.
           现成的软件

4. 搁置的;闲置的;没人要的
    If you say that someone or something is on the shelf, you mean that no one wants them.

    e.g. I was afraid of getting left on the shelf.
           我害怕嫁不出去。
    e.g. ...first-rate plans which sit on the shelf.
           不被采用的最佳方案