She has an open, trusting nature.

她天性坦率，容易相信别人。

《柯林斯英汉双解大词典》

Her trusting nature often led her into trouble.

她凡人都相信的本质经常给她带来麻烦。

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But her old-fashioned ways and trusting nature are an ill fit with the increasingly impersonalized world.

但是她的旧式的行为方式和容易相信别人的天性对她生活在这个越来越没有人性的世界是很不利的。

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The apprehension in trusting the unknown will always be a component of human nature.

FORBES: Why Cloud Computing Is Slowly Winning The Trust War