Hand tools are relics of the past that have now been superseded by the machine.

手工工具是过去的遗物，现在已被机器取代。

《柯林斯英汉双解大词典》

The Amish are often perceived by other Americans to be relics of the past who live a simple, inflexible life dedicated to inconvenient out-dated customs.

其他美国人常常认为阿米什人是历史遗迹，他们过着简单、呆板的生活，且坚持着麻烦而过时的习俗。

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What relics from past romances would YOU leave in the Museum of Broken Hearts?

从过去的恋情中，你能在失恋博物馆留下什么纪念品？

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Currencies that once symbolised national power are now curious relics of the past.

WSJ: Gareth Harding: Europe Reborn

But as techniques that every teacher will need to master, I hope that they, like our current factory-model monolithic education system, will be relics of the past.

FORBES: A Hope for Future Irrelevance

Why are sovereign ratings relics of the past?

FORBES: Sovereign Credit Ratings: Relics Of A Bygone Era