U-value
u值
🧩 词语组成解析
🗣️ 情景例句
I'm starving, aren't you?
我饿了，你呢？
My brother wants to learn how to swim.
我的兄弟要去学游泳。
What a relief it was when the boulders suddenly disappeared, giving way to a stretch of plain where the only obstacles were clumps of bushes.
突然大石块不见了，前面是一片平地，唯一的障碍只有一簇簇灌木丛。这使我们长长地松了口气。