U-value
u值
🧩 词语组成解析
🗣️ 情景例句
Jogging is a popular form of exercise.
慢跑是一种十分普及的体育活动。
This is a rather old house. It needs painting.
这房子挺旧的，得刷一下才行。
One day a letter from my father arrived at the school, asking for a teacher for me.
有一天，我父亲的信寄到学校，请求为我聘用一名教师。