The MVC pattern has been around for a long time (since 1979) and it is intended to separate the burden of tasks necessary to display a user interface, and handle user interaction.

MVC模式(自1979年以来)已经出现很长时间了，它皆在分离显示用户界面所需的大量任务，并处理用户交互。

youdao

It took a long time for men to learn how to separate the electrons from their nucleus.

人们花费很长时间才学会怎样把电子同原子核分开。

youdao

For a long time, separate factions Catholics living, non-contacts.

长期以来，两派教徒分开居住，互不往来。

youdao