U-tube
[化] U型换热管
🧩 词语组成解析
🗣️ 情景例句
Robbie! Who is it? Robbie
是谁呀？
When Greek meets Greek, then comes the bug of war.
两雄相争，难解难分。
One of the things that fascinates us most about cats is the popular belief that they have nine lives.
最使我们感兴趣的一件事情就是一种通俗的信念——猫有九条命。