Radiothoriun
放射性钍
🗣️ 情景例句
I've been studying all day, and I'm sick and tired of it.
我学了一天，现在感到厌倦。
Many sands will sink a ship.
积沙沈船。
' I looked down and nearly fell off the ladder when I saw a policeman.
”我向下面看去。当我看清是一个警察时，差一点儿从梯子上掉下去。