Definition: the cause of something, or where something begins or comes from Level: B2
这个古老传统的起源是什么？
What is the ___origin of this ancient tradition?
科学家们正在争论地球上生命的起源。
Scientists are debating the ___origin of life on Earth.
这个食谱源自意大利，但已在当地做了改良。
The recipe is of Italian ___origin, but it has been adapted locally.
