Optimism and enthusiasm are essential to maintaining a friendly atmosphere.

乐观、热情是维持一种友善氛围的基础所在。

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"The good news is that deforested areas can be reforested and provide a safety margin, " said Lovejoy, maintaining some optimism.

尽管如此，洛夫乔伊还是表现的很乐观 “好消息是被砍伐的区域将重新植树造林，为亚马逊提供一个安全区域。”

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The secret to optimism is that it doesn't just happen — highly optimistic people have to work on maintaining their sunny attitudes.

乐观的秘密并不偶然——高度乐观的人需要努力来维持他们的阳光心态。

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Their responses varied, but most of them said they survived through optimism, maintaining a sense of hopefulness, confidence, and positivity while striving to improve their situations.

FORBES: How To Use Optimism To Defeat Adversity