Few people ask by what authority the writers of dictionaries and grammars say what they say.
by what authority是视作ask的嵌入式宾语从句,在从句the writers of dictionaries and grammars say作方式状语?
by what authority the writers of dictionaries and grammars say what they say 这是名词性疑问分句(又叫间接问句),作ask的宾语。所有名词性从句都是嵌入分句,所以没有必要在这里提及嵌入式宾语从句,只需说宾语从句即可。by what authority 为疑问短语,置于从句之首引导从句。
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