“Stephen D. Krashen”的概念、定义、翻译、参考文献-科学参考

单词	Stephen D. Krashen
释义	Stephen D. Krashen Encyclopedia 文学第二语言习得释 Stephen D. Krashen克拉申，S.D. （1941～）美国应用语言学家、第二语言习得研究学家和语言教育学家。
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科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。