求翻译：虚拟课堂正变得越来越受欢迎。在这样的课堂里，学生可以安坐家中借助电脑和教授交谈，通过电子邮件交作业和论文。此外，他们也可以在网上和其他同学交流。互联网极大地拓展了多样化学习的可能性。但另一方面，本来应该给人们带来便利的电脑有时会成为使用者最大的麻烦，一旦系统彻底瘫痪，我们常常感到很无助是什么意思？

The virtual classroom is becoming increasingly popular. In this classroom, students can sit at home with the help of computers and professors to talk via e-mail homework and papers. In addition, they can also communicate on the Internet and other students. The Internet has greatly expanded the diver

Virtual Classroom is becoming more and more popular. In this class, students can sit at home and to teach with the aid of a computer chat, e-mail to job and papers. In addition, they are also available on the Web and other exchange students. The Internet has greatly expanded its diversified learning

The hypothesized classroom is becoming more and more receives welcome.In such classroom, the student may sit quietly in the family converses with the aid of the computer and professor, hands over the work and the paper through the email.In addition, they also may on-line and other schoolmates exchan

Virtual classroom is becoming more and more popular. In the classroom, students can be at home with the help of computers and talking to professors, homework and papers by e-mail. In addition, they also can communicate online with other classmates. Greatly expand the possibilities of diversification