Nitrococcus
亚硝化菌
🗣️ 情景例句
Excuse me, but may I ask how old you are?
对不起， 我能问一下你多大了吗？
Which American singer do you like to listen to?
你喜欢哪个美国歌星的歌曲？
Do you think that would help?
你认为那有用吗？