log in

动词 log in:

1. enter a computer
   同义词：log on, log-in

1. Do you know how to log in to the system?
   你知道怎么登录进入这个系统吗？
2. A device that enables a user entity to log in, for example, to identify itself, its purpose and the time of entry; and to log out with the corresponding data so that the appropriate accounting procedures may be carried out in accordance with the operating system.
   使用户实体能够注册(例如标识用户本身、注册目的以及进入时间)的一种装置，并能和相应的数据一起注销，以便配合操作系统办理适当的记帐手续。