The tree class represents a tree and is a subclass of Basetree.

树以tree类表示，这个类是Basetree的子类。

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This is a simple binary tree class that I wrote while writing a PDA program.

这是一个简单的二进制树类，我在写一写掌上电脑程序。

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Figure 5 demonstrates the process of generating an inheritance tree class diagram.

图5展示了产生一个继承树类图的过程。

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Yarnall also has her own network of "wood scouts, " who call whenever they find a world-class tree.

FORBES: Trees with souls

On a tour of the palace's school, Charles met pupils in a reception class, before planting a tree in the garden to mark his visit.

BBC: NEWS | South Asia | Prince Charles gets into Indian groove

Some of the quotes cited are about how her Rogue class is good at stabbing, or leveling her assassination skill tree, or wields daggers, or runs dungeons.

FORBES: On Video Games as a Political Liability