francium的翻译，读音

例句

francium is the densest of the Alkali Metals and also radioactive. 钫是碱金属中密度最大的，具有放射性。

francium. No idea if that's right, but I'll take your word for it. 钫。

Because francium is mainly only found synthetically in laboratory research, it has no known use outside of the laboratory. 由于钫主要仅在实验室研究中产生，它在实验室外没有已知的用途。