apportion/əˈpɔːʃ(ə)n/
vt.分摊； 分配to apportion the money fairly平均分配一笔钱
Due to the lack of witnesses, it is difficult to apportion the blame for the accident right now.由于没有证人，一时很难分清这次事故的责任。
The department manager apportioned his men the duties for the week.部门经理把一星期的工作任务分配给他的下属。