The origin of the custom is obscure.

该习俗的起源鲜为人知。

《柯林斯英汉双解大词典》

Delaney's wife is the origin of his idea.

德莱尼的妻子是他灵感的来源。

youdao

The origin of this nation is wrapped in profound mystery.

这个国家的起源似乎奥秘莫测。

《新英汉大辞典》

Darwin had been working on his theory for over twenty years when he published " On the Origin of Species."

VOA: special.2009.12.01

Genesis is concerned to account for the origin of things and wrestles with the existence of evil, the existence of idolatry and suffering in a world that's created by a good god.

创世纪》被认为解释了万物的来源,试图解决罪恶的存在，盲目崇拜的存在以及这个受苦的世界,这是一个善良的神创造的。

耶鲁公开课 - 旧约导论课程节选

So instead of just studying pathologies whether it's in physical health or psychological health, we should also study the origin of health.

也就是说除了研究病理学,无论是生理健康，还是心理健康，还需要研究健康的起源。

哈佛公开课 - 幸福课课程节选

The origin of Mr. Akin's thoughts about what he called "legitimate rape" is unclear.

WSJ: Under Fire, Todd Akin Vows to Stay in Senate Race

That means the retailers themselves don't always know the origin of clothes when they're made overseas.

NPR: Shoppers Face Hurdles In Finding Ethical Clothing

The origin of writing and reading cannot be understood as a direct evolutionary adaptation.

NEWYORKER: A Man of Letters