树形模型是表示一个语言家族的发展并显示两种或更多语言的密切相关程度的一种便捷方式。
The tree model is a convenient way of representing the development of a language family and of showing how closely related two of more languages are.
无论使用哪种语言,访问者模式都是操作树形数据的一种可靠工具。
In each case, I've found that the Visitor pattern is a reliable tool for manipulating trees of data.
他使用了一种其他生物学家成功应用在语言起源上的统计树形图这一方法,尽管一些语言学家对此还有些疑虑。
He has used a statistical tree-drawing method that other biologists have applied successfully to language origins, despite some linguists' skepticism.
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