I have a lot of wealth, but I feel nervous when I think someone tries to steal my money every day.
我有很多财富，但是当我想到每天都有人试图偷我的钱时，我就感到紧张。
Similarly, there is a wealth of literature providing advice on how to do project management — and presumably, do it better.
简单地来说，有很多著作提供了有关如何做好项目管理的建议——并且可能做的更好。
Since these are existing products you should have a wealth of info, such as, log files, completion rates and times, drop out rates and drop out points, etc.
因为它们都是现成的产品，所以应该可以收集到很多信息，包括日志文件、任务完成率和次数、故障率和故障点等等。
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