We shall, first of all, study your catalogues and get in touch with the end-users.

我们先研究一下你的目录，并与我们的用户联系一下。

youdao

First, all users will become more effective.

首先，所有用户的效率将提高。

youdao

First, all users will become more effective.

首先，所有用户的效率将提高。

youdao