Gregation
纯群聚, 同型同种群聚
🗣️ 情景例句
And now for ... something old,
现在， 接着是 一些旧的，
He says it's too dangerous.
他说这样做很危险。
Suddenly, a middle-age lady got on the train and sat opposite Sally.
突然，一个中年妇女上了火车，坐在萨莉的对面。