不能重叠控制结构。

You cannot overlap control structures.

youdao

它们有很多相同的概念，要处理的问题域也在很大程度上重叠：验证、授权和访问控制。

They both share a lot of concepts and a domain — the domain of authentication, authorization, and access control.

youdao

1987年，Windows 2.0版本应市，使用同样的应用程序，但可以实现窗口调整和重叠，控制面板和键盘快捷方式也是新亮点。

In 1987, Windows 2.0 came with the same applications, but you could now resize and overlap Windows. Control panel and keyboard shortcuts were also new.

youdao