Cobaltinitrite
亞硝酸根合高鈷酸鹽
??? 情景例句
Hello, how are you doing today?
你好， 今天怎么樣？
I always used to leave for work at 8:30.
我過去總是在8:30離開去工作。
This is what the sculptor must do.
而雕塑家就必須做到這一點。