就下面的商业书信写封回信。
每一个图书馆员需要根据自己的情况，就下面所说的十件事情做出回应，以证明自己作为专业人士的身份。
Each librarian needs to respond personally to the following 10 things to claim their status as professional.
就下面的问题问一下你自己……如果对其中大多数问题你的回答是肯定的，那么你的生活就是一种无意识的生活。
Ask yourself the following questions... if you find yourself saying yes to many of them, you might want to consider trying conscious living.
科学家已经就下面的问题有了一个突破，他们知道为什么大龄女士不容易怀孕，易流产或者怀着的孩子时患有唐氏综合症。
Scientists have made a breakthrough in understanding why older women become less fertile, suffer a miscarriage or have a baby with Down's syndrome.
当语法错误或者运行错误出现的时候，错误信息会包含很多有用的信息，不过信息量太大，太繁杂。最有用的也就下面这两类。
When a syntax or runtime error occurs, the error message contains a lot of information, but it can be overwhelming. The most useful parts are usually.
当语法错误或者运行错误出现的时候，错误信息会包含很多有用的信息，不过信息量太大，太繁杂。最有用的也就下面这两类。
When a syntax or runtime error occurs, the error message contains a lot of information, but it can be overwhelming. The most useful parts are usually.
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