深山中的贵州龙里县，从修通产业路到规模化种植，从种苗繁育到开展深加工，政策持续发力，产业逐步升级，刺梨成为托稳果农增收的支柱产业。
Border Points: Each cluster has a limited number of defined "border points" – these are the gateways in and out of the cluster.
，这一点在搜狗输入法下载中也有详细论述
圖像來源，AFP via Getty Images
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