基本解释(=post applicationem) (拉)应用后； 敷用后,(=pro anno) (拉)一年； 某年同根派生 p.a相关词英汉例句This has been a banner year in sales.这是销路特旺的一年。Jim has not held down a job for more than a year.没有一份工作吉姆能保住一年。p.a更多例句