青云翻译

Choice: popular propaganda, geographic and demographic statistics were more selective, low cost

Selected cause: popular publicity, geographic and demographic aspects of selecting strong, low cost

Choice reason: The popular propaganda, the geography and the population statistic aspect results in the selectivity to be strong, the cost is low

reason for choice: popular publicity, geographic and demographic statistics in a relatively strong, low-cost, selective

Selected cause: popular publicity, geographic and demographic aspects of selecting strong, low cost