U-tube
[化] U型换热管
🧩 词语组成解析
🗣️ 情景例句
That's all right, Susan.
没有错， Susan。
Do you know any of those people?
你认识那些人吗？
He waved desperately to his companion, who had been water skiing for the last fifteen minutes.
他绝望地向他的伙伴挥手，他的伙伴在过去的15分钟里一直在滑水。