珍爱生态环境是全人类共同的事业。
It's the common cause of all the human beings to cherish and preserve the ecological environment.
慈善是全人类共同的事业。
国际人类团结日突显了代表社会最弱势者为共同事业采取行动的重要意义。
International Human Solidarity Day highlights the importance of acting in common cause on behalf of society's most vulnerable people.
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