If "phone" was an attribute of the employee element, then it can exist only once per employee, and we could not add child elements too it, which may hinder schema evolution over time.

如果“phone”是雇员元素的一个属性，那么对于每个雇员，它只能出现一次，我们也不能为之添加子元素，这将妨碍模式随时间而变化。

youdao

We can simply add child views to it directly through the XML layout file.

我们也可以在XML布局文件中直接添加子视图。

youdao

This method does not add child nodes or attributes to the specified child element.

此方法不向指定的子元素添加子节点或特性。

youdao

Parents can open a joint account with a child or add the child as an authorized user to an existing account.

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But that young, healthy, low-income family that buys their own coverage and used to be able to add a child to their policy for a song?

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Another alternative, says Erinn Springer, media specialist with GoHealthInsurance.com an online portal for finding health insurance coverage, is try to add a child to an individual or group health policy as a dependent.

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