So claims that--about the failure of conservation in children at different ages could be easily tested and systematically tested, and in fact, there's a lot of support for them.

关于不同年龄阶段的儿童,缺乏守恒概念的论断,能够很轻易的得到系统的检验,事实上,有相当多的证据支持这些论断

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as well as install them in the cars and validate the software that was with them.

还把系统安装在车里并检验配对的软件。

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