The government has been legitimately elected by the people.这个政府是人民依法选举出来的。

They could quarrel quite legitimately with some of my choices.对于我的一些选择, 他们是可以据理力争的。

He can legitimately claim to have played an important role in the affair.他有理由说自己在这个事件中扮演了重要角色。