Nitrobarite
[化] 钡硝石
🗣️ 情景例句
Thanks so much, Harry and Michelle.
太感谢了， Harry和Michelle。
What will you do now?
现在你要怎么办？
and then there are three thousand million other Milky Ways, or galaxies, in the universe.
况且在宇宙中还有30亿个天河，即银河系。