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No substitute for study and experience.
什么也不能代替学习和实践？
youdao
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The study of bone graft substitute was a hot point in recent one hundred years.
骨缺损修复材料的研究是近百年来的热点课题之一。
youdao
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The study of bone graft substitute was a hot point in recent one hundred years.
骨缺损修复材料的研究是近百年来的热点课题之一。
youdao