Each of the participating businesses displays a Christmas tree on their premises decorated with special hanging ornaments.

VOA: standard.2009.12.24

Well, notice again, on each level of the tree, when I actually do the merging, so this remember, is when I wrote down just the numbers when I bottomed out with the list of size 1.

请注意，在这棵树中的每一层，我真正做合并时，就将每个大小为1的列表中的,数字写下来。

哈佛公开课 - 计算机科学课程节选

And then we'll construct our tree as follows: each node, well, let me put an example here.

然后我们如下建立我们的决策树：,每一个节点，好的，让我们在这里举一个例子。

麻省理工公开课 - 计算机科学及编程导论课程节选

Using a hollow tube, they drill into the tree and extract a 5-mm wide cylinder that shows each ring starting with the most recent, just under the bark.

VOA: standard.2010.04.05

And these tree trunks were the chords and at the base of each of these chords at least conceptually, theoretically, is this thing called the root.

这些树干就是和弦，而每个和弦的底部，从理论上说，就是被称为根的东西。

耶鲁公开课 - 聆听音乐课程节选

O Right there, order n. So I have order n operations at each level in the tree. And then how many levels deep am I? Well, that's the divide, right? So how many levels do I have?

在这儿,所以我在树的每个层次都要做O的操作,那个这棵有多少层呢？,这是一个除法，不是吗？

麻省理工公开课 - 计算机科学及编程导论课程节选