U-tube
[化] U型换热管
🧩 词语组成解析
🗣️ 情景例句
Remember, the Michigan football game?
记得吗，Michigan足球赛？
Live and learn.
活到老，学到老。
Suddenly, there was a slight trembling sound from below, and the captain went down to see what had happened.
突然，从船舱下部传来一声微颤音，船长走下船舱去查看究竟。