Figure 10 illustrates how the location structure changes as we traverse the tree, here going down (always to the first left child), then right, then down.

图10展示了在我们遍历树时位置结构发生了怎样的变化，在这里向下(始终下移至左侧第一个子节点)，随后向右，然后再向下。

youdao

Is she the child your sister left?

她是你姐姐留下的孩子吗？

youdao

The child cried as soon as he left his table.

他刚一离开桌子，孩子就哭了。

youdao

The current version of the law, signed by George W.Bush eight years ago,is known as the No Child Left Behind Act.

VOA: special.2010.03.18

They say that some states have lowered their standards in order to increase student scores on tests required by the No Child Left Behind Act.

VOA: special.2010.03.25

And still there would be enough left for new stockings two pairs per child.

VOA: special.2009.09.05

While I would recommend revisions to No Child Left Behind legislation that would encourage the benefits of performance pay, increase support for struggling schools and motivate high performance in addition to ensuring baseline requirements, I am convinced that the firm accountability measures that No Child Left Behind introduced must be preserved.

FORBES: Magazine Article

In 2004, officers went to the home after child welfare officials alerted them that Ariel Castro, a school bus driver, apparently left a child unattended on a bus, Flask said.

NPR: Frantic 911 Call Leads To 3 Missing Women In Ohio

The disaster left in the wake of No Child Left Behind should serve as a cautionary tale.

FORBES: President Obama Says Standardized Tests Make Education Boring, Don’t Adequately Measure Performance