这句话的upon什么意思?Firstly,citiesbecomemoreandmorecrowded,puttingmuchpressureupontransportation,housing,sanitation,education,employmentandsoon.
<p>问题：这句话的upon什么意思?Firstly,citiesbecomemoreandmorecrowded,puttingmuchpressureupontransportation,housing,sanitation,education,employmentandsoon.<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">李丹风的回答：<div class="content-b">网友采纳 首先,城市变得越来越拥挤,将很大的压力带给了交通、住房、卫生、教育、就业等. put...upon,将.加于...之上.
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