francium🔊 朗读

双语例句

1 . The half - life of francium is 22 minutes.

钫的半衰期是22分钟.

来自辞典例句

2 . 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.

来自互联网