プログレッシブ和英中辞典(第4版)の解説
こうせき【功績】
〔手柄〕a meritorious deed；〔業績〕achievements；〔貢献〕services
科学上の功績
scientific achievements
彼は世界平和のために大いに功績をあげた
He rendered remarkable services to the cause of world peace.
会社は彼の功績を認め昇進させた
The company promoted him in recognition of his achievements [services].
それは彼の功績だ
The credit should go to him.