pollution is a serious problem in big cities throughout the world 同义句转换就变throughout这点
题目
pollution is a serious problem in big cities throughout the world 同义句转换就变throughout这点
答案
all over /all around/round
Pollution is a serious problem in big cities all over the world .
Pollution is a serious problem in big cities all round the world .
Pollution is a serious problem in big cities round the world .
句意:污染是全世界大城市的严重问题.
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我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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