After we develop a list of topics, we decide how many questions are needed for each topic and at what level of difficulty these questions should be.

在我们开发了主题列表之后，我们决定每个主题需要多少个问题和这些问题应该具有何种困难级别。

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After we develop a list of topics, we decide how many questions are needed for each topic and at what level of difficulty these questions should be.

在我们开发了主题列表之后，我们决定每个主题需要多少个问题和这些问题应该具有何种困难级别。

youdao