U-value
u值
🧩 词语组成解析
🗣️ 情景例句
Sheet is a five-letter word. Sheet
是五个字母的单字。
Two or three of them look familiar.
我认识他们中的两三个。
It looks like a cat! Put it in your desk please, Lucy.
看起来象只猫。露茜，请把它放到桌子里。