But there is an environmental cost. Shanghai residents now use two and a half times more power per head than their rural cousins.
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重點講解:
1. more than
更多;較多;
eg.It's a good idea to give adolescents a little more information than they ask for.
青少年提了問題,不妨在回答后再給點兒額外信息。
eg. It will produce electricity more cheaply than a nuclear plant. 它的發電成本要比核電站低。
2. south of
位于…以南;在…南邊;
eg. They now own and operate a farm 50 miles south of Rochester.
他們現在擁有并經營著一家位于羅切斯特以南 50 英里處的農場。
eg. I was living in a house just south of Market Street.
我就住在市場街南邊的一座房子里。