Radium cannon
[医] 镭炮, 镭管
🧩 词语组成解析
🗣️ 情景例句
Don't worry. The traffic is very heavy at this hour.
别担心。这个时间交通很拥挤。
Oh, I'm very sorry, sir.
噢，我实在抱歉。
All the stories of families, heroes, wars and journeys are passed down from generation to generation.
所有家族、英雄、战争、旅行的情况都是世代口传的。