The page designer does not need to know much about form beans, for example, beyond the bean names and the names of each field in a given bean.
例如，页面设计人员不需要清楚地了解表单bean，而只需要知道bean的名称和已知bean中每个字段的名称。
I might say you don't know beans about a subject if you do not know anything at all about it.
我可以说你不知道一个主题豆子，如果你不知道它有关的一切事情。
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