[字辨] 想問文章片段其中一句的意思
在讀書會的時候遇到這一段
The countries that account for the most travel abroad,
controlling for population, are all in Western Europe: Germany, Denmark,
Belgium, Norway and the Netherlands.
Outside of Europe, the most travel-intensive countries are Canada,
Israel, Singapore and the United States,
a reflection of the fact that they need to deploy many brains
to make use of their diverse know-how.
想問前面的controlling for population是什麼意思？
這篇文章是在探討商務旅行(business travel)是否還有其必要性。
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