Costello's business dealings have been under investigation by the FBI for months.科斯特洛的商业交易已被联邦调查局调查了好几个月。Costello will have five direct subordinates.科斯特洛将会有五个直接领导的下属。Costello later apologized, saying he'd been annoyed by the man.科斯特洛后来表示了歉意，说他是被那人惹怒的。