1·A notable Ponderosa pine forest once thrived on the site's sandy soils and shallow groundwater.
基地中的砂质土壤和浅层地下水曾经孕育了一片繁茂的北美黄松林。
2·Above, I could see only a strip of starry sky, so close were the walls of the canyon and so dense the growth of ponderosa pine.
抬头只能看见一长条繁星密布的天空。峡谷的峭壁看起来离我那么近，黄松林长得那么茂密。
3·Arizona is more likely to be associated with cactus than pinecones, but Flagstaff, in the northern part of the state, has the largest Ponderosa pine forest in the continental United States.
亚利桑那一般会跟仙人掌而不是松果联系在一起。但是，北部的弗拉格斯塔夫却拥有美国大陆最大的黄松林。
4·Arizona a is more likely to be associated with cactus than pinecones, but Flagstaff, in the northern part of the state, has the largest Ponderosa pine forest in the continental United States.
亚利桑那一般会跟仙人掌而不是松果联系在一起。但是，北部的弗拉格斯塔夫却拥有美国大陆最大的黄松林。