Nitrosohemochrome
亚硝基血色素
🗣️ 情景例句
Never pump gas with the engine running.
发动机在运转时，别加油。
Are they all non-reserved seats?
他们全部不预订的吗？
I think no. He must be her fourth or fifth.
不，他一定是她的第4个或第5个丈夫。