Nitrospina
硝化刺菌屬
??? 情景例句
Special for new friends.
特地為新朋友準備的。
Let me treat you.
讓我請客。
Well, you just need lots of practice. The more you listen to English, the easier it becomes.
噢，你需要大量的練習。英語你聽的越多，就越容易聽懂。