Radium therapy
镭锭疗法
🧩 词语组成解析
🗣️ 情景例句
This spring is the origin of the brook.
这泉水是那条小河的源头。
Time cures all things.
时间可以医治一切创伤。
One day a letter from my father arrived at the school, asking for a teacher for me.
有一天，我父亲的信寄到学校，请求为我聘用一名教师。