Polonium
[ [pə'ləuniəm] ]
高中 Senior High
n. 钋\\n[化] 钋Po
🗣️ 情景例句
Safety first.
安全第一。
Rain before seven: fine before eleven.
早雨不过午。
The next morning, the box had disappeared but Mrs. Ramsay was sure that the kidnapper would keep his word.
第二天早晨，放钱的盒子不见了。但拉姆齐太太确信绑架者是会履行诺言的。