プログレッシブ和英中辞典(第4版)の解説
きんぞく【勤続】
continuous service
勤続する serve for long years; be in continuous service
父は永年の勤続により表彰された
My father was honored in recognition of his long service.
彼はその会社に30年勤続した
He served [worked] in the firm for thirty years.
勤続手当
a long-service allowance
勤続年限
勤続年限に応じて
in proportion to the length of one's service