Once you've got that, you can do minus 7 times a vector Just take the vector, multiply it by Pi and flip it over.

明白这点之后,你就可以计算-7乘以矢量,只需用 π 去乘以那个矢量,然后将其方向调转

耶鲁公开课 - 基础物理课程节选

and helps me get where I'm going a little bit.

也给了我小小的帮助，让我朝着我要去的方向继续前进。

去溜冰场 - SpeakingMax英语口语达人

The genetic code is said to be degenerate because I can read in one direction.

遗传密码的这种性质称为简并性,我可以从一个方向去解读

耶鲁公开课 - 生物医学工程探索课程节选

So here in the G Minor Symphony we feel as--oh, it's so full of tension, angst,anxiety, perhaps passion, it's driving somewhere, and one of the things that's driving it is its accelerating rate of harmonic change.

在G小调交响曲里我们能感觉到，哦，音乐中充满了紧张，揪心，焦虑，甚至激情，这些感情正在向某个方向涌去，吸引它们的力量之一就是不断加速的和声变化率。

耶鲁公开课 - 聆听音乐课程节选