Every form may contain one or more nested sub-forms inside its body element.

每个表单的表体里面包含一个或多个嵌套的子表单。

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Also, the technique USES rich XML structures instead of key-value pairs, allowing nested sub-forms and repeating elements.

此外，这种技术采用了丰富的XML结构而不是键值对，允许出现嵌套的子表单和重复的元素。

youdao

For example, forms should display a clear and simple header along with related sub-headers.

比如，表单应该有一个清晰简单的标题和一些相关的子标题。

youdao

The record levels of risk undertaken by financial institutions, home-buyers, and investors, particularly in sub-prime mortgages and other forms of creative financing, made for a collapse of crisis proportions when the bubble burst.

FORBES: Financial Reform Fades But The Need Escalates

Despite the huge geographical and cultural diversity, one myth, in various forms, emerges consistently from sub-Saharan Africa.

ECONOMIST: The spirits that move Africa

The large sub-categories are Social Security, Medicare, Medicaid and various forms of public assistance (food stamps, housing support, etc.).

FORBES: Federal Spending Up, Employment Down