per annumper annum /pər ˈænəm/ (written abbreviation p.a.) adverb formal正式formalformalフォーマル격식체 for each year每年por cada añopor cada ano1年につき매년, 연간:  a salary of $40,000 per annum年薪40,000美元un salario de $40,000 per annumum salário de $40,000 per annum年俸40,000ドル연봉 $40,000