Radiothorium
n. [化] 放射性钍
🗣️ 情景例句
Next week I'm taking my driving test.
我下星期考车牌。
Did you hear something?
你听到了什么？
Recent developments in astronomy have made it possible to detect planets in our won Milky Way and in other galaxies.
天文学方面最新发展使得我们能够在银河系和其他星系发现行星。