Neoflavane
新黄烷
🗣️ 情景例句
Dear Mr. Billet.
尊敬的比利先生。
He is planning his future already.
他已经在为将来做打算了。
She got to school early. She had a little rest after lunch, but she worked hard in class all day.
她早早来到了学校。午饭后她小休一会儿，但一整天她在课堂上都很用功。