Equal (0): Everything in this space must be equal to 0. The answer is 0-0, placed horizontally; 3-0, placed vertically.
彼时，指导脱贫；如今，谋划振兴。跨越10多年，两次看柚子，“三农”工作重心已经实现历史性转移。。safew官方版本下载对此有专业解读
，详情可参考Line官方版本下载
"But the queuing system to get in, the management of the crowds and the parking makes me feel like there are still teething problems to be sorted out."。91视频对此有专业解读
先理解原理：看动图 + 手动模拟小数组