Cobaltinitrite
亚硝酸根合高钴酸盐
🗣️ 情景例句
It's ten after six. We're late.
现在是六点十分。我们迟了。
What's it like, being and actor?
做为一个演员，你有什么想法？
It is all too easy to blame the railway authorities when something does go wrong.
因此，一旦铁路上真出了问题，人们便不加思索地责备铁路当局。