我们这些试验是白做了。
我进行了艰苦的锻炼，然后出去吃饭，使所有的锻炼都白做了。
I did really tough exercises and then went out for a meal and undid all the good work.
同学们，伊丽莎白做了一张很漂亮的卡：“给文森特，你是我的朋友。”不是很好吗？
Class, Elizabeth did a wonderful card: 'To Vincent, you are my friend.' Isn't that nice?
举一个第三条的例子，在微软系统安装了部分更新程序后，其更新提醒的窗口使得我周五的部分工作白做了。
Taking the example of 3 in bold, above, I lost some work on Friday thanks to Microsoft Windows' kind reminder to restart after it had installed some updates. The reminder looks like this.
举一个第三条的例子，在微软系统安装了部分更新程序后，其更新提醒的窗口使得我周五的部分工作白做了。
Taking the example of 3 in bold, above, I lost some work on Friday thanks to Microsoft Windows' kind reminder to restart after it had installed some updates. The reminder looks like this.
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