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Explains various ways to join tables and how to choose what option is best.
解释联接表的各种方法以及如何选择最佳方法。
youdao
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Signing up is easy: choose a topic you know something about and join.
申请加入是很简单的：请选择一个你所熟悉的专题。
youdao
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Signing up is easy: choose a topic you know something about and join.
申请加入是很简单的：请选择一个你所熟悉的专题。
youdao