维也纳大学的这个研究小组由杰哈德·克罗奇教授担任组长，共招募了8对20多岁的未婚无子女情侣作为研究对象。
A team led by Professor Gerhard Kloesch at the University of Vienna recruited eight unmarried, childless couples in their twenties for their study.
维也纳大学的这个研究小组由杰哈德·克罗奇教授担任组长，共招募了8对20多岁的未婚无子女情侣作为研究对象。
A team led by Professor Gerhard Kloesch at the University of Vienna recruited eight unmarried, childless couples in their twenties for their study.
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