a theoty pridicts what will happen.一个理论预测了将要发生的事
i enjoy reading the books written by Luxun 我喜欢读鲁迅写的书
this is the first time they have seen the sea 这是他们第一次看到大海
a theoty pridicts what will happen.一个理论预测了将要发生的事
i enjoy reading the books written by Luxun 我喜欢读鲁迅写的书
this is the first time they have seen the sea 这是他们第一次看到大海