The bulbs should hang below the leaves to let the heat rise into the tree.

VOA: special.2010.01.12

When you get--this is Rituparna, counting the leaves on a tree-- you can estimate, from a sample, the population expected values.

如果你...像数叶子的睿都巴若那一样,只有部分样本的话,你可以来估计总体均值

耶鲁公开课 - 金融市场课程节选

Rituparna looked at one branch and estimated the number of leaves on the tree, but Nala was skeptical.

睿都巴若那查看了一根树枝,然后估算了一个总数,但是那勒仍然心存怀疑

耶鲁公开课 - 金融市场课程节选

You can also wrap a tree in palm tree frond leaves, cornstalks or fiberglass.

VOA: special.2010.01.12

The point I wanted to make is that for every node, except the leaves, the leaves are the bottom of a tree in this case, are weird, right, they draw trees where the root is at the top, and the leaves are at the bottom.

你没必要看到整棵树，我想说的重点是,对每个节点来说，除了叶子节点,叶子节点指的是树的最下面的节点，电脑科学家都很奇怪,他们画树的时候根是在最上面的。

麻省理工公开课 - 计算机科学及编程导论课程节选

Small pieces of tree bark or cut up leaves can be used.

VOA: special.2009.06.30

You don't have to count all the leaves on the tree, you can take a sample and you count that and then you multiply.

你不必数树上所有的叶子,你可以抽样,然后计数,再相乘即可

耶鲁公开课 - 金融市场课程节选

The leaves grow on tree trunks.

VOA: special.2010.04.06

So Rituparna tries to prove to him his abilities and he says, see that tree there, I can estimate how many leaves there are on that tree by counting leaves on one branch.

所以睿都巴若那就试图证明自己的能力,他说,看那边的树,我只需数一根枝杈上的叶子,就能估算出树上叶子的总数

耶鲁公开课 - 金融市场课程节选

You have n branches on the tree and you count the number of leaves and sum them up.

一共有n根树枝,你数了叶子的数量然后把他们加起来

耶鲁公开课 - 金融市场课程节选