Cobaltinitrite
亚硝酸根合高钴酸盐
🗣️ 情景例句
And you saved it for me, didn't you, Mother?
也留着要给我， 对吗， 妈妈？
Mere words will not fill a bushel.
空言无补。
We'd better not just talk; let's go to the river to bathe.
我们最好别光顾说了；咱们去河里游泳吧。