altruistic act

Bands of altruistic humans would then act together to gain resources from other groups at this challenging time in history.

波段的利他主义的人，然后一起采取行动，以获得资源从其他团体在这一具有挑战性的历史时刻。

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the selfless act of egg-giving is a very altruistic act, but we can't ignore the fact that it carries risks.

无私捐献卵子是一种利他行为，但是我们不能忽视带有危险成分的事实。

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And they're altruistic because they act to preserve other animals that share the same genes.

说它们利他，是因为它们会保护其他动物，和它们有同样基因的动物。

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This altruistic act gives an inkling of what could be done if the lottery was harnessed for charitable and social welfare projects.

依法一：这种义举给了人们一种暗示&如果将彩票用于慈善和社会福利事业，人们可以做些什么。

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people like to congratulate themselves when they commit a selfless, altruistic act, like donating to charity or helping a stranger in need.

人们喜欢在自己做了无私的奉献之后表扬一下自己，例如向慈善机构捐款，帮助一个困难中的陌生人。

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