N1
か否か
Whether or not
納得
する
か
否
か
は
問題
で
は
ない
。
It's not a question of whether one agrees or not.
それ
に
気付い
て
いる
の
か
否
か
。
“Whether or not one is even aware of that.”
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2025-07-24
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Now you can see your mastery level of each sentence directly on the sentence page, as well as in My Library.