A guardian is someone who has been legally appointed to take charge of the affairs of another person, for example a child or someone who is mentally ill. 监护人
noun [专属名词]监护人;守卫者,保护者;(方济各会隐修院的)院长
Destiny's legal guardian was her grandmother. 德斯蒂妮的法定监护人是她的祖母。
adjective [原级]守护的
A delightful guide was my guardian angel for the first week of the tour. 令人愉快的导游是我第一周旅行的守护神。