Directed edge
[计] 定向边, 直边, 定向棱
🧩 词语组成解析
directed
[[di'rektid]]
a. 定向的；经指导的；被控制的
edge
[ɛdʒ]
n. 边;优势;（悬崖、峭壁的）边缘，端;锋利，尖锐;
vt. 在…上加边界;使渐进;给（刀刃）磨边，使锋利;修整;
vi. 慢慢向前移动，侧身移动;
🗣️ 情景例句
Well, I almost had a heart attack a few moments ago.
好啦，我几乎要得心脏病了。
He has a radio,doesn't he?
他有一台收音机，对不对？
Will you please try to find out for me what time the train arrives?
能不能请你帮我查查火车什么时候到？