Many foreign friends have been curious and wonder if the articles without English titles are for Chinese readers only. Could you translate the title and provide a brief summary of the untranslated articles?
曾有外國朋友相當好奇，也很疑惑其中是不是有中國人才能知道的內容。可否在目錄中對沒有英譯的文章加印英文簡介，並註明此單元無英譯文？