Radium tubes
[医] 镭管
🧩 词语组成解析
n. 管子, 导管；管状虫；伦敦地铁（tube的复数）
🗣️ 情景例句
Workers have to work very hard to keep bread on the table.
工人得十分努力工作才能赚钱糊口。
Would you mind opening the window?
你介意开窗吗？
Only five years?
仅仅5 年？