He shared his profound knowledge of every little thing during the entire meal.
He was such a trivial expert that I had to listen to him mumbling about some random facts and tidbits during the meal.
He shared his profound knowledge of every little thing during the entire meal.
(食事中、彼は細々と蘊蓄を共有して来た。)
He was such a trivial expert that I had to listen to him mumbling about some random facts and tidbits during the meal.
(彼はトリビア好きで、食事中ずっと雑学や蘊蓄を聞かされ続けた。)
というのはいかがしょうか!
profound knowledge = 深い知識
during the entire meal = 食事中ずっと
trivial expert = 雑学王/トリビア好き
mumble about = ブツブツ言う/(耳障りなことを)話し続ける
random facts = 雑学
tidbits = 有益なちょっとした情報/蘊蓄
以上、乱雑で申し訳ありませんが、少しでも参考になれば嬉しいです✨