1. 渴望;热望;欲望
    A desire is a strong wish to do or have something.

    e.g. I had a strong desire to help and care for people...
           我非常渴望能够帮助和照顾他人。
    e.g. They seem to have lost their desire for life.
           他们似乎已丧失了对生活的热望。

2. 渴望;想望;想要
    If you desire something, you want it.

desire的解释

    e.g. She had remarried and desired a child with her new husband...
           她又结婚了，并且渴望和新任丈夫生个小孩。
    e.g. But Fred was bored and desired to go home...
           但弗雷德觉得很无聊，想要回家。

3. 情欲;肉欲;性欲
    Desire for someone is a strong feeling of wanting to have sex with them.

    e.g. Teenage sex, for instance, may come not out of genuine desire but from a need to get love.
           例如，青少年的性行为可能并不是源于真正的情欲，而是出于一种对爱的需要。

4. 想与…发生性关系
    If you desire someone, you want to have sex with them.

    e.g. It never occurred to him that she might not desire him.
           他从没有想过她可能不想跟他上床。

5. （用于说明性的书面语中）如果需要的话,如果愿意的话
    If desired is used in instructions in written English to indicate that someone can choose to take the course of action mentioned.

    e.g. Additional courses may be taken if desired...
           如有需要可选修额外的课程。
    e.g. Transfer this sauce to a separate saucepan, if desired.
           如果愿意的话，可以把这些调味汁倒入一只单独的长柄锅里。

6. 心里想望之人;心中渴望之物
    If you say that someone or something is your heart's desire, you mean that you want that person or thing very much.

    e.g. He was extremely devious in his efforts to achieve his heart's desire.
           他在设法得到自己的中意之物时会不择手段。

7. 尚有（许多）需要改进之处;有待（大幅）提高
    If you say that something leaves a lot to be desired, you mean that it is not as good as it should be.

    e.g. The selection of TV programmes, especially at the weekend, leaves a lot to be desired...
           可供选择的电视节目，尤其是在周末的时候，还有大幅提升的空间。
    e.g. Food seems to have been available, even if the quality left much to be desired...
           食品似乎能够买到了，虽然质量还远不尽如人意。