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Mary is three years old.Lucy is six years old合二为一We live in the south of China 改为同义句

题目详情
Mary is three years old.Lucy is six years old合二为一
We live in the south of China 改为同义句
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答案和解析
Mary is three years younger than Lucy .
= Mary is younger than Lucy.
=Mary is not as / so old as Lucy .
2 We live in South China.