And so six-year-old Lauren there noticed that the first one took one, and the second one took three more and the total was four on that one, the third one took five more and the total was nine on that one, and then the next one.
6岁的罗伦注意到 第一格需要一个纸片 第二格则需要额外的3个 总计需要4个 第三个则需要额外的5个 加起来是9个 以此类推