Being an EU citizen may come with common rights.

成为欧盟公民同时会获得共同权利。

This is really common right now in North America.

这在北美现在很普遍。

It's something that will be common in the future, even though it's not very common right now.

这是将来会很普遍的事情，尽管现在不是很普遍。

Two- and four-processor configuration are the most common right now, but every now and again even that much processing power isn't enough.

两个和四个处理器的配置是目前最常见的配置，但时不时地，即使那么多的处理能力也不够。

The bad news is that, since it's so common right now, you can probably expect her to go by her first name and last initial once she reaches grade school.

坏消息是，这个名字现在很普遍，你可能会期望她到了小学就用她的名字和姓氏。