首先，如果这个角色不存在的话，代码会自动将其添加，然后将用户添加到此角色。

The code first adds the role if it doesn't yet exist, then adds the user to the role.

youdao

不存在将连接保持在定制代码中的现成的方法。

There was no obvious way of keeping the connection persistent within custom code.

youdao

从长期来看，依赖已经不存在了；从短期来看，代码移植更加迅速。

In the long term, the dependency goes away; in the short term, the code migration occurs more quickly.

youdao