忘れがたく: 【副】 hauntingly 重要な業績: important achievement 緊急の場合にはそれが実に大事だ[重要だ]。: That's really important in emergencies. わすれがたい: わすれがたい [忘れ難い] adj. unforgettable [通例ほめて] 忘れられない. 忘れがたき出来事: 1. event hard to forget 2. unforgettable event それがxとyの重要な違いです。: That's the key difference between X and Y. なぜそれが重要なのでしょうか?: Why is it important? それが重要だ。: That's the key. 極めて重要な業績: momentous accomplishments それは重要な収益を上げる方法である: It is a way to generate critical revenue. 受け入れがたい: → 受け入れ難い 業績の上昇: upswing on business results 業績の好転: turnaround 業績の復調: improvement in business performance 業績の悪化: 1. worsening business performance 2. worsening of business performance