现在当 Charlie 登录到控制台（或者按 Ctrl-Alt-F2 组合键登录到控制台，或者如前述输入 runlevel 3）时，系统将询问他要以哪个角色的身份登录。

Now when Charlie logs in on console (either Ctrl-Alt-F2 to get to a console or enter runlevel 3 as described earlier), he will be asked which role to log in to.

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注册后，用户可以提交相关的任何语言的文件和信息。 登录时，用他们的邮箱作为用户名，选择一个密码，然后点击“提交”键。

Once registered, users can submit any documents and information of relevance in any given language, by logging, using their email as username and a chosen password, and then using the button “SUBMIT”.

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在开发出了统一申请表后，意味着只要登录填写一次然后按下发送键就可以简简单单将自己的申请信息发往400多所大学。

The development of the common application means that one entry can be dispatched to over 400 schools with the push of the "send" button.

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net For those unfamiliar this is a website at courses.cs50.net and has the entire Harvard Course catalog in it and what it has at top left as you might see is definitely your Facebook login button.

还不熟悉的同学可以登录courses。cs50。,整个哈佛大学的课程目录都在上面,在这个网页的左上角,可以看到Facebook的登录链接键。

哈佛公开课 - 计算机科学课程节选