If you add the menu as a child of the label itself, then the menu might not show up at all because the label will measure the text that it holds and create a dimension that fits the text only.

如果您将菜单添加为标签的子元素，那么菜单根本就不会显示，因为标签将仅度量它所包含的文本，然后创建一个符合文本的大小。

youdao

If the message part that is transferred in the header does not show up anywhere in the element, you have an implicit header. Listing 4 shows what this might look like.

如果在消息头中传送的消息部分没有在元素中显示，那么它就是一个隐式消息头。

youdao

The justice of the peace may not show up, the caterer's oven could break down or the reception hall might reserve the wrong date.

太平绅士（注2）可能缺席，厨房的烤箱也许会发生故障，或是接待处预订错了时间。

youdao

Any potential effects of the prostaglandin drug might not show up.

FORBES: Magazine Article

The researchers found no benefit over six years, but they admit that the effects of long-term use might not show up with regard to cancer until much later.

BBC: Aspirin - risks and benefits

But if Clinton manages to pull this out, she will have done so in a style that alienates young Obama voters who might not show up to vote in November.

FORBES: More Questions Than Answers