经理将项目的功劳全部据为己有的自私行为震惊了整个团队。

The manager's ___selfishness in taking all the credit for the project shocked the entire team.

作者认为，贪婪和自私是许多社会问题的根源。

The author argues that greed and ___selfishness are at the root of many societal problems.

她无情的自私最终导致了他们长期友谊的破裂。

Her relentless ___selfishness ultimately led to the breakdown of their long-term friendship.