sweat out
　　焦急等待　说流利英语的秘密
　　例句：
　　Frank was sweating out the results of his entrance examination.
　　弗兰克正在焦急等待着他的升学考试结果。
　　hard disk
　　硬盘
　　例句：
　　One of the side-effects of using your PC regularly is: the more you work, the more the storage on your hard disk gets distributed across the surface.
　　经常使用你的个人计算机会带来另一个副作用，那就是，你做的工作越多，所占用的硬盘空间就越多。