It's only a matter of academic interest to me now, as you might say, but I thought it would he interesting to know. 正如你可能會說的，這對我現在只不過是一個學術問題罷了，但我曾認為弄懂這個問題會是很有意思的。
A topic, a subject, or an area of academic interest or specialization. 主題，范圍一個題目、課題或學術興趣或專業領域
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