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学龄前儿童
Even the children who had above average self-control as pre-schoolers could have benefited from more self-control training.
2016年6月六级真题（第一套）听力 Section C
英汉双解词典包含4367426条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。