英汉词典

1. 年长的;上年纪的
    You use elderly as a polite way of saying that someone is old.

elderly的解释

    e.g. ...an elderly couple...
           老夫妇
    e.g. Many of those most affected are elderly.
           受影响最大的人中很多都是上了年纪的。

2. 老式的;老掉牙的
    If you describe an object as elderly, you are referring, often in a humorous way, to the fact that it is rather old or old-fashioned and not as good or efficient as a new one would be.

    e.g. Some of those artillery pieces look a little elderly.
           那些大炮中有些看起来有点老掉牙了。