Pyrazine
吡嗪, 对二氮杂苯, 胡椒嗪
🗣️ 情景例句
Not just to go around the neighborhood asking for furniture,
不仅在这社区募家具，
I must concentrate on my new task.
我必须专注于我的新工作。
To protect themselves from the icy water, they had to wear special rubber suits.
湖水冰冷刺骨，他们必须穿上一种特制的橡皮服以保护自己。