having a sour, bitter, and acidic taste that is often unpleasant

酸っぱい, 苦い
a fabric made of the combination of long, thin strands of a specific chemical compound called cellulose acetate

アセテート
pertaining to or containing acetic acid

酢酸の, 酢酸の
a brief section added at the end of a literary work, providing closure, commentary, or resolution

エピローグ, 後書き
the event when Jesus Christ was revealed to the Magi

公現祭, 神現祭
(mathematics) a constant in the equation of a curve whose variation produces a family of similar curves

パラメータ, パラメータ
holding a dominant rank, authority, or influence in a particular system or hierarchy

最高の, 主要な
to express the meaning of something written or spoken with a different choice of words

言い換える, パラフレーズする
a person who suffers from an abnormal condition in which they walk around during sleep

夢遊病者, ソムナンビュリスト
a disorder in which one is unable to sleep or stay asleep

不眠症, 睡眠障害
expressing sorrow for having done wrong

悔恨の, 後悔している
