为了扩大先前的小范围研究，在2000至2007年间，约翰和他的同事们从十四个地区收集了并分析了300份雄性海豚的脂肪样本。
To expand on previous, smaller-scale studies, Kucklick and colleagues analyzed 300 blubber samples that had been collected between 2000 and 2007 from male bottlenose dolphins at 14 sites.
未来亟需扩大样本量进行更大范围的实证研究，或验证其他效用代名词，如工作满意以及主观幸福感。
Future research need to base upon more large survey sample in individual level, or confirm other utility proxy, such as job satisfaction and subjective wellbeing.
但随着比较研究样本国家的扩大和进程的深入，人们发现现实世界与伯利和米恩斯的描述是不相符合的。
With the increase of the numbers of comparing specimen countries and study depth, the real world was found to be different from Berle and Means's description.
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