英文：Which came first, the chicken or the egg?
說明：經常略作 the chicken and/or the egg?。
例句：
- Do you know which came first, the chicken or the egg? (你知道先有雞還是先有蛋嗎？)
- What do you say when a kid asks you: “Which came first, the chicken or the egg?” (當小孩問你「先有雞還是先有蛋」時，你要怎麼說呢？)