While living standards have improved,environmental problems

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/08 16:28:38

While living standards have improved,environmental problems have become increasingly severe.
这句话是什么结构啊

while放于句首,等于though/although,while在这里引导让步状语从句.“虽然生活质量已经改善了,但是环境问题已变得每况愈下了.”
再问：时间状语从句也说的通吧：当人们生活水平的提高，环境问题已经越来越严重
再答：该句的侧重点是在转折上，生活水平的提高和环境问题的严峻构成一对矛盾体。

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