Apochromatism
复消色差
🗣️ 情景例句
What was it about?
刚才谈什么？
Is this the right bus for Pacific Boulevard?
这是去太平洋大道的车吗？
They will be coming by train and most of the young people in the town will be meeting them at the station.
他们将乘火车来，镇上的大部分青年人将到车站迎接他们。