在登录后，点击「所有课程」，搜索您有兴趣的课程，或者在搜索字段直接以关键字搜索相关课程
After logging in, click “All Courses” and search the course you’re interested.
找到您想报名的课程后，点击进入课程，就会看见报名学习按钮在课程图片下方
If you find one you’d like to learn, click “Into course”, then you’ll see “register course” button under the
course image.
按下报名学习后会跳出确认报名窗口，点击报名，待网页跑完后即加入成功
After clicking the button, please wait for the page completing loading, then you'll join the course successfully.