log in / on
登录,注册,进入, 登入 (计算机系统)
to perform the actions that allow you to begin using a computer system 登入
You need a password to log on.登录需要密码。
log sb in / on
让某人登录,使注册,使进入(计算机系统)
to allow sb to begin using a computer system
The system is unable to log you on.这个系统无法让你登录。
释义来自《牛津高阶英汉双解词典》第 9 版