U-value
u值
🧩 词语组成解析
🗣️ 情景例句
That's better than being behind.
这总比落后要好。
The most important festival in China is the Spring Festival.
中国国，最重要的节日是春节。
What they had in fact found was a ship which had been sunk many years before.
事实上，他们发现的是另一艘沉没多年的船。