Have been thinking about the questions for a long time(have always been waiting for the answer on that question),but all the sudden I understood.
英汉互译“一直想弄明白的问题,原来在那么一刹那就明白了.”用英语怎么说?
Have been thinking about the questions for a long time(have always been waiting for the answer on that question),but all the sudden I understood.