Following the investigation, several managers were dismissed for misconduct.

dismissed 是动词 dismiss 的过去分词形式，在句中表示被动语态。dismiss 由前缀 dis-（表示"离开、分开"）和词根 miss（源自拉丁语 mittere，意为"发送"）组成，字面意思是"发送离开"，引申为"解雇、开除"的意思。dismissed 在这里表示"被解职"的状态。