1. （从上到下的）深（度）
    The depth of something such as a river or hole is the distance downwards from its top surface, or between its upper and lower surfaces.

    e.g. The smaller lake ranges from five to fourteen feet in depth...
           小一些的湖深度从 5 英尺到 14 英尺不等。
    e.g. The depth of the shaft is 520 yards...
           立井的深度为520码。

2. （从前到后的）深（度）；纵深
    The depth of something such as a cupboard or drawer is the distance between its front surface and its back.

3. (感情的)深厚，深切
    If an emotion is very strongly or intensely felt, you can talk about its depth .

depth什么意思

    e.g. I am well aware of the depth of feeling that exists in Londonderry...
           我很清楚存在于伦敦德里市的那种强烈情绪。
    e.g. 'Tough, isn't it?' was all she said, but Amy felt the depth of her unspoken sympathy.
           “很艰难，对不对？”她只说了这一句，但埃米感觉到了她未出口的深切同情。

4. 严重性;严峻性
    The depth of a situation is its extent and seriousness.

    e.g. The country's leadership had underestimated the depth of the crisis.
           该国领导人低估了这场危机的严重性。

5. (知识等的)渊博
    The depth of someone's knowledge is the great amount that they know.

    e.g. We felt at home with her and were impressed with the depth of her knowledge...
           我们与她在一起很自在，而她渊博的知识令我们叹服。
    e.g. It makes invaluable reading for anyone who wants to acquire a greater depth of understanding of the subject.
           想要对这个问题有更加深入的了解，读读它会受益匪浅。

6. (颜色的)浓度
    The depth of a colour is its intensity and strength.

    e.g. White wines tend to gain depth of colour with age...
           白葡萄酒年头愈久，颜色愈深。
    e.g. The blue base gives the red paint more depth.
           蓝色底色将红色涂料衬托得愈加浓重。

7. (照片、画作等的)景深
    In photography and art, you say that a picture has depth or depth of field when you mean that it appears three-dimensional rather than flat.

    e.g. All the paintings are startlingly dramatic as a result of their depth of field and colour.
           景深和色彩的运用令所有的画作都展现出令人惊叹的戏剧性效果。

8. 深刻;深奥
    If you say that someone or something has depth, you mean that they have serious and interesting qualities which are not immediately obvious and which you have to think about carefully before you can fully understand them.

    e.g. His music lacks depth...
           他的音乐缺乏深度。
    e.g. There are hidden depths in all of us.
           我们所有人都有值得认识的深藏部分。

9. (海洋或陆地的)深处,深渊
    The depths are places that are a long way below the surface of the sea or earth.

    e.g. The ship vanished into the depths.
           船消失在了大海深处。

10. （某一区域的）深处，腹地
    If you talk about the depths of an area, you mean the parts of it which are very far from the edge.

    e.g. ...the depths of the countryside...
           乡村腹地
    e.g. Somewhere in the depths of the pine forest an identical sound reverberated.
           从松林深处传来一声回响。

11. (某一不快感情的)极限
      If you are in the depths of an unpleasant emotion, you feel that emotion very strongly.

      e.g. I was in the depths of despair when the baby was sick.
             孩子生病时我陷入了绝望的深渊之中。

12. …的中间部分;…最严重的时候;…最强烈的时候
      If something happens in the depths of a difficult or unpleasant period of time, it happens in the middle and most severe or intense part of it.

      e.g. The country is in the depths of a recession.
             该国正遭遇最严重的经济衰退。
      e.g. ...the depths of winter.
             隆冬时节

13. 深入地;彻底地;全面地
      If you deal with a subject in depth, you deal with it very thoroughly and consider all the aspects of it.

      e.g. We will discuss these three areas in depth...
             我们将深入探讨这3个领域。
      e.g. Their achievements have already been analysed in depth and do not require further discussion.
             他们的成就已经全面分析过了，无需再议。

14. 应付不了;力所不及
      If you say that someone is out of their depth, you mean that they are in a situation that is much too difficult for them to be able to cope with it.

      e.g. Mr Gibson is clearly intellectually out of his depth...
             吉布森先生显然才智不逮。
      e.g. I'd always struggled at school. I hated it and felt out of my depth.
             我上学总是很吃力。我讨厌学习，觉得太难了。

15. 在水深没顶的地方
      If you are out of your depth, you are in water that is deeper than you are tall, with the result that you cannot stand up with your head above water.

16. to plumb new depths -> see plumb
      to plumb the depths -> see plumb