al·tru·is·m /ˈæltru-ɪzəm/ noun [uncountableU] SELFISHwhen you care about or help other people, even though this brings no advantage to yourself 利他主义,无私 Many choose to work in developing countries out of altruism. 许多人无私地选择在发展中国家工作。
—altruist noun [countableC]