此设备仅给专业人士使用。

This equipment is for professional use only.

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给这些专业人士付酬最高的州是新泽西州，那里此职位的平均年薪为134,170美元。

The best-paying state for these professionals is New Jersey, where they pull in an average annual salary of $134,170.

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所以，我希望这十个问题能够给每一个自认为是专业人士而从未认真地自我怀疑过的图书馆员一点小小的警示。

So there. I hope these ten items put a little devil on the left shoulder of every librarian who claims professional status without a good dose of self-doubt to go with it.

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