他们把我扯出树洞，按在地上。
给出树和轮的全联结数的计算公式。
The calculated formulas of total binding number for the tree and the wheel are given.
最后输出树中每个元素的行信息。
It then prints the line information for each element in the tree.
用画笔和棕色画出树干
正如您可能已经猜到了，我们将作出树云后面。
As you probably have guessed we are going to make a cloud behind the tree.
你可能会指出树叶是如何一样的，以及他们如何不同。
You might point out how the leaves are the same, and how they are different.
你可能会指出树叶是如何一样的，以及他们如何不同。
You might point out how the leaves are the same, and how they are different.
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