Poynting vector
[化] 坡印亭矢量
🧩 词语组成解析
[人名] 波因廷
🗣️ 情景例句
If there's anything you need, please call me.
假如你们需要什么， 请打电话给我。
The milk is spilled.
木已成舟。
Sometimes the yeast within a writer outlives a book he has written.
有时，一个作家一本书写完了，但兴奋仍不消散。