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来源:雅诚德英语网
The survey was repeated in 2007 and 2008, with about three-quarters of the original group taking part in all three.
2007年和2008年都重复进行了这项调查,第一次受访的儿童有四分之三都参与了这三次调查。
The survey was repeated in 2007 and 2008, with about three-quarters of the original group taking part in all three.
2007年和2008年都重复进行了这项调查,第一次受访的儿童有四分之三都参与了这三次调查。