New Chinese help files!

lang/zh_cn/help/courserecent.html

@@ -1,16 +1,9 @@
-<P ALIGN=CENTER><B>Recent Activity</B></P>
+<P ALIGN=CENTER><B>当前活动项目</B></P>
 
-<P>Moodle can display "recent activity" on the course home page.
+<P>Moodle可以显示“当前活动项目”于课程首页。
 
-<P>This shows the everything that has happened in the course since
-the last time the viewer logged in to the course, including 
-new posts, new users, submitted journals etc.
+<P>这显示了自从该访问者上次登录以来的新事件，包括新贴子，新用户，新出的杂志等等。
 
-<P>It is highly recommended you leave this feature enabled in 
-your courses, as it helps give a sense of activity in the course.
-Knowing what everyone else is doing also helps to promote a 
-collaborative atmosphere in the class.
+<P>强烈推荐在你的课程中打开这个功能，这有助于用户知道课程当前的活动。让大家知道其他人正在做什么也有利于形成团结协作的气氛。
 
-<P>You might want to disable this feature for extremely large or 
-heavily used courses, as it may slow down the display of 
-the course page.
+<P>如果你的课程很繁忙，用的人很多，你可能要关掉这个功能，因为这样会使你的课程显示速度变慢。

lang/zh_cn/help/courseshortname.html

@@ -1,7 +1,4 @@
-<P ALIGN=CENTER><B>Course short name</B></P>
+<P ALIGN=CENTER><B>课程简称</B></P>
 
-<P>Many institutions have a shorthand way of referring to a course, such as 
-   BP102 or COMMS.  Even you don't already have such a name for your course, 
-   make one up here.  It will be used in several places where the long name 
-   isn't appropriate (such us in the subject line of email).</P>
+<P>有很多约定俗成的课程简称。如果没有你也可以造一个。这将用于全名不适用的地方，比如email的主题中。</P>
 

lang/zh_cn/help/coursestartdate.html

@@ -1,19 +1,11 @@
-<P ALIGN=CENTER><B>Course Start Date</B></P>
+<P ALIGN=CENTER><B>课程起动日期</B></P>
 
-<P>This is where you specify the starting time of the 
-   course (in your own timezone).
+<P>这里用来指定课程的起动时间。
 
-<P>If you are using a 'weekly' course format, this will 
-   affect the display of the weeks.  The first week will
-   start on the date you set here.
+<P>如果你用的是“星期”格式，这个设置将影响星期的显示。第一周将以你在此设定的日期开始。
  
-<P>This setting will not affect courses using the 
-   'social' or 'topics' formats.
+<P>这个设置对“社区”或“主题”格式没有影响。
 
-<P>However, one place this setting will be affect is 
-   the display of logs, which use this date as the earliest
-   possible date you can display.
+<P>但会影响到日志的显示，这个日期是日志可能显示的最早日期。
  
-<P>In general, if your course does have a real starting date
-   then it makes sense to set this date to that, no matter 
-   what course formats you are using.
+<P>一般而言，如果你的课程真的有一个起始日期，那就设成那个日期，不管你采用什么显示格式。

lang/zh_cn/help/enrolmentkey.html

@@ -1,23 +1,11 @@
-<P ALIGN=CENTER><B>Course Enrolment Key</B></P>
+<P ALIGN=CENTER><B>选课密钥</B></P>
 
-<P>A course enrolment key is what keeps unwanted people 
-   out of your course.
+<P>选课密钥是用来让你阻止你不希望进入的人进入你的课程。
 
-<P>If you leave this blank, then anyone who has created 
-   a Moodle username on this site will be able to enrol
-   in your course simply by going in to it.
+<P>如果你留空，那么任何人只要创建了一个Moodle帐号就可以直接进入你的课程。
 
-<P>If you put something here, then students who are trying 
-   to get in for the FIRST TIME ONLY will be asked to supply 
-   this word or phrase.
+<P>如果你在这里输入了一些字词，那么学生若要参加你的课程，第一次访问时就被要求提供你在这里输入的字词，而他此后的访问就不再需要这个密钥。
 
-<P>The idea is that you will supply the key to authorised 
-   people using another means like private email, snail mail,
-   on the phone or even verbally in a face to face class.
-
-<P>If this password "gets out" and you have unwanted people 
-   enrolling, you can unenrol them (see their user profile page)
-   and change this key.  Any legitimate students who have already 
-   enrolled will not be affected, but the unwanted people won't be 
-   able to get back in.
+<P>对于你准许参加的学生，你可以通过email，传统信件，电话或在课堂上把这个密钥告诉他们。
 
+<P>如果这个密钥泄漏了，有一些你不希望参加的人也进来了，你可把他们“开除”出你的课程（通过查看用户个人资料页），然后更改这个密钥。已经合法选课的学生不受影响，但你不想要的人就回不来了。