在许多情况下，管理员有时可能几个星期都不接触某个特定的环境，因此，期望他们能够记清每一个具体环境的每一次细微变动是不合理的。
In many cases, administrators might not touch a particular environment for several weeks at a time, and so it is not reasonable to expect them to remember every nuance of every individual environment.
星期三会有一个私人教练在一个小时里把我当做农场的动物一样折腾，有时会让我感到眩晕，并且奢侈地花掉了和我一个礼拜购物一样多的钱。
On Wednesday a personal trainer will work me like a farm animal for an hour, sometimes to the point that I am dizzy - an abuse for which I pay as much as I spend on groceries in a week.
大部分书目将在两星期内过期，且有时会员必须删除档案，这样下一个在虚拟队伍中等待的顾客才能取得阅读许可。
Most titles expire after two weeks, though in some cases members are asked to delete the file, so the license can be transferred to the next patron waiting in a virtual line.
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