治疗关节炎的新方法可能会提供一种止痛药的替代品。

New ways to treat arthritis may provide an alternative to painkillers.

《柯林斯英汉双解大词典》

它是和朋友喝酒的替代品。

It's a substitute for drinking with a friend.

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不幸的是，你必须随身携带必要的设备，因为几乎不可能找到天然的替代品。

Unfortunately, you must carry the necessary equipment with you, since it's all but impossible to find natural substitutes.

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So biomedical engineers have been working for many years on how to design replacement parts for joints like the hip: the artificial hip is the most well developed of those.

因此,生物医学工程师花了很多年时间,致力于设计像髋关节这样的关节替代品,尤以人工髋关节的研究最为成熟

耶鲁公开课 - 生物医学工程探索课程节选

he viewed a large part of our-- of the idea of finding a singular, all-powerful god as seeking out a father figure that some of us never had during development.

他认为大部分人,想要寻求一位全知全能的神,其实质是在寻找在发展阶段,所缺失的父亲形象的替代品。

耶鲁公开课 - 心理学导论课程节选