Because node structures go in only one direction, they know nothing about the sequence of nodes that precede them.

由于节点结构只指向一个方向，所以它们完全不了解它们之前的节点的顺序。

youdao

Like honeybees and ancient mariners, they can navigate by the sun, so they know the general direction in which to travel.

它们跟蜜蜂和古代海员一样，可以通过日照导航，从而知道出行的大致方向。

youdao

Studies show that a man's brain measures speed and distance to know when to change direction.

研究表明，男性大脑通过估量速度和距离来知道什么时候转变方向。

youdao

"We know that much of the training and the direction for terrorists comes from Pakistan and the border area with Afghanistan,"

VOA: standard.2009.12.11

But I know when I multiply a vector by a number, I get a vector in the same direction.

但是我所知道的是当矢量乘以一个常数,我会得到一个同方向的矢量

耶鲁公开课 - 基础物理课程节选

You just need to remember what's happening to z effective, which really tells us what's happening with all the trends, and once you know z effective, you can figure out, for example, what direction the atomic radius should be going into.

你只需要记住有效核电量的规律，实际上它会告诉我们所有的规律，只要你知道了有效核电量的规律，你就可以判断，比如，原子半径会向着哪个方向发展。

麻省理工公开课 - 化学原理课程节选

Now imagine that while we know the direction of each of these policy changes, alas, we are very uncertain about how far these wonderful ideas will go.

WSJ: Clifford S. Asness: Uncertainty Is Not the Problem

Senator JOE BIDEN (Democrat, Delaware): He or she better be able to, from the moment they stand behind that desk, know which direction they want to take the country.

NPR: Behind in Polls, Biden Hopes for Iowa Surprise

But I think we need to step back and acknowledge that we don't know what direction the hurricane -- or the tropical storm, if it becomes a hurricane, will take.

WHITEHOUSE: Press Briefing