/ˈpiːnəl/ adj.1.(of punishment)+ affairs, reform, system(有关)处罚的；(有关)刑罚的
director-general of penal affairs at the justice ministry司法部刑事处处长
penal and legal systems刑罚与法律制度
He campaigned against poverty and for penal reform.他参与反贫困和支持刑罚改革的运动。
2.(payable as a penalty)作为罚款的
a penal sum罚款数额
3.(used as a place of punishment)+ institution, establishment用作刑罚的；关押服刑人员的
There are over 66,000 people in our penal establishments at the moment.目前我们的服刑机构收容人员超过66,000名。