Brown University is providing its students with Microsoft Office 365 ProPlus at no charge. 布朗大学免费向学生提供微软365专业增强版。
Apple now offers a new program to replace the faulty sleep/awake button on iPhone 5 at no charge. 苹果公司推出一项新服务，用户 iPhone 5的睡眠/唤醒按钮如果出现问题的话，苹果公司可以为用户免费换新。
好的，今天我们学习的词是 at no charge, at no charge, at no charge ...
