1. 宝贵的；珍贵的；贵重的
    If you say that something such as a resource is precious, you mean that it is valuable and should not be wasted or used badly.

    e.g. After four months in foreign parts, every hour at home was precious...
           在国外呆了4个月后，在家的每一刻都是宝贵的。
    e.g. A family break allows you to spend precious time together...
           家庭度假会让你们一起度过宝贵的时光。

2. 珍奇的；珍稀的
    Precious objects and materials are worth a lot of money because they are rare.

    e.g. ...jewellery and precious objects belonging to her mother.
           她妈妈的珠宝和珍奇物品

3. 值得珍视的；可贵的；重要的
    If something is precious to you, you regard it as important and do not want to lose it.

    e.g. Her family's support is particularly precious to Josie...
           家庭的支持对乔茜来说尤为可贵。
    e.g. Mary left her most precious possession — a small bookcase — to her niece.
           玛丽把她最珍视的财产——一个小书架，留给了她的侄女。

4. 宝贝似的（强调对别人珍视的东西表示厌恶）
    People sometimes use precious to emphasize their dislike for things which other people think are important.

    e.g. You don't care about anything but yourself and your precious face.
           你什么都不关心，除了你自己和你那张娇贵的脸。

5. 矫揉造作的；一本正经的
    If you describe someone as precious, you mean that they behave in a formal and unnatural way.

    e.g. Actors, he decided, were too precious and neurotic.
           他认定演员们太做作，并且都神经兮兮的。

6. 一点点；极少
    If you say that there is precious little of something, you are emphasizing that there is very little of it, and that it would be better if there were more. Precious few has a similar meaning.

    e.g. The banks have had precious little to celebrate recently...
           银行最近没几件值得庆贺的事。
    e.g. Precious few homebuyers will notice any reduction in their monthly repayments.
           极少数购房者会注意到他们月还款额的减少。