Poynting vector
[化] 坡印亭矢量
🧩 词语组成解析
[人名] 波因廷
🗣️ 情景例句
But Christmas is the most important holiday of the year.
但是圣诞节是一年当中最重要的节日。
How long will you remain in the country?
你将会在乡间逗留多久？
Then, squinting his eyes, he said:
接着，他斜着眼，说：