Cobaltinitrite
亚硝酸根合高钴酸盐
🗣️ 情景例句
I don't know. The baby-sitter says she has a stomachache,
我不知道。临时保姆说她肚子疼.
The Senator acceded to his defeat before the end of the election.
那位参议员在选举结束以前就承认落选了。
A day later.
一天以后