n.利他主義；利他

Anonymity is the truest expression of altruism. 不記名是利他主義最真的表現(xiàn)。

Altruism, according to the text books, has two forms. 根據(jù)書(shū)本上的解釋，利他主義有兩種表現(xiàn)形式。

His altruism won the neighbors' respect. 他那利他的行為贏得了鄰居的尊敬。

Ambitionthat is masked as altruism. 利他主義掩蓋下的野心。