Nitrobacterium
[医] 硝化菌
🗣️ 情景例句
I keep in touch with my family regularly.
我定期和家里保持联系。
Can you spot me?
你能先帮我垫一下吗？
Hello! Did you enjoy yourselves at the party ?
你好！你们在晚会上玩得愉快吗？