我试图和他联系,但他的电话占线。I tried to reach him, but the line was busy.电话占线。The line is engaged.接线员告诉打电话的人对方电话占线.The operator told the caller that the line is busy....
杰伦·拉尼尔创造了“虚拟现实”这个词,并成为推动其早期发展的先驱人物。Jaron Lanier coined the term "virtual reality" and pioneered its early development.大银行是发展这一体系的先驱。The big banks have been the pacesetters in developing the system.她是现代妇女运动的先驱.She is a fo...