Polyketone
聚酮
🗣️ 情景例句
That's important for us.
这对我们很重要。
It's a pen.
是支笔。
We shall all remember Mr.Page for his patience and understanding and for the kindly encouragement he gave us when we went so unwillingly to school.
我们不会忘记佩奇先生对我们既有耐心又充满理解，也不会忘记在我们不愿去上学时他给予我们的亲切鼓励。