n.利他主义；利他
Anonymity is the truest expression of altruism. 不记名是利他主义最真的表现。
Altruism, according to the text books, has two forms. 根据书本上的解释，利他主义有两种表现形式。
His altruism won the neighbors' respect. 他那利他的行为赢得了邻居的尊敬。
Ambitionthat is masked as altruism. 利他主义掩盖下的野心。
