短语动词 show up：到达或出现

这是短语动词 show up，意思是到达或出现在某个地方。

再看几个例子：

He promised to help, but he never showed up.
他答应来帮忙，却一直没出现。

Only a few people showed up to the meeting because of the rain.
因为下雨，来开会的人很少。

If you show up unprepared, the presentation will not go well.
要是毫无准备就到场，演示不会顺利。

They showed up unexpectedly with a birthday cake.
他们带着生日蛋糕突然出现了。