1. 黄油；牛油
    Butter is a soft yellow substance made from cream. You spread it on bread or use it in cooking.

butter是什么意思

    e.g. ...bread and butter...
           面包和黄油
    e.g. Pour the melted butter into a large mixing bowl.
           把熔化的黄油倒在一个搅拌用的大碗里。

2. 给…抹上黄油；涂黄油于
    If you butter something such as bread or toast, you spread butter on it.

    e.g. She spread pieces of bread on the counter and began buttering them.
           她把几片面包摆在台上，开始抹黄油。
    e.g. ...buttered scones.
           抹过黄油的烤饼

3. see also: bread and butter;peanut butter

4. 明白自己的利益所在；善于为自己打算
    If you say that someone knows what side their bread is buttered on, you mean that they know what to do or who to please in order to stay in a good situation or to avoid a bad one.

    e.g. These chaps know what side their bread's buttered on.
           这些家伙知道怎样做对他们有利。

相关词组：butter up