First of all we need references.
首先我们需要参考图。
We need at least ten references for the essay.
那份论文我们需要至少10本参考书目。
A: How many references do we need?
我们共需要几本参考书目？
First we need to know some references.
首先，我们需要知道一些参考。
first we need to know some references.
首先我们得知道哪忝怯心男备询人。
first we need to know some references.
首先我们得知道哪忝怯心男备询人。
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