1. 风俗;习俗
    A custom is an activity, a way of behaving, or an event which is usual or traditional in a particular society or in particular circumstances.

    e.g. The custom of lighting the Olympic flame goes back centuries...
           点燃奥林匹克圣火的习俗可以追溯到几个世纪前。
    e.g. Chung has tried to adapt to local customs.
           钟努力去适应当地的风俗习惯。

2. 个人习惯;习性;惯常行为
    If it is your custom to do something, you usually do it in particular circumstances.

    e.g. It was his custom to approach every problem cautiously...
           他习惯谨慎地处理每一个问题。
    e.g. As is the custom, police forensic experts carried out a painstaking search of the debris.
           像往常一样，警方的法医专家对残骸进行了仔细的查看。

3. 光顾;惠顾
    If a shop has your custom, you regularly buy things there.

custom的意思

    e.g. You have the right to withhold your custom if you so wish...
           如果你这么不想来，你可以不再光顾。
    e.g. Providing discounts is not the only way to win custom.
           打折并不是招揽顾客的唯一途径。

4. 定做的;量身设计的
    If you use custom to describe something such as a vehicle or a piece of clothing, you mean that it has been designed for one particular customer.

    e.g. Her one-of-a-kind custom garments are priced from one hundred dollars to more than a thousand dollars.
           在她这里定做一件款型独一无二的衣服，价格从100美元到1,000美元以上不等。

5. see also: customs