USDA按当地一年里最低气温来划分的区域，美国本土基本上被分成11个区，分区数字越大、气候越暖和

来源: 熊王xiaoya 于 2020-05-08 07:50:37 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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