Nitrosomas
亚硝酸菌
🗣️ 情景例句
When's the last time you took a vacation?
上次你去度假是什么时候？
It's nothing to get upset about.
没什么，用不着烦恼。
In the process, he enjoyed himself thoroughly and kept telling everybody how much he hated hospitals.
在晚会上他尽情娱乐，一再告诉大家他是多么讨厌医院。