There are qualitative differences in the way children of different ages and adults think..不同年龄的儿童和成人在思维方式上有着质的差异。
qualitative英语解释质的；定性的英释adjadjrelating to the quality or standard of something rather than the quantity
qualitative短语和解释qualitative analysis,[化]定性分析；定量分析.短语
