当然,大约200年前,印第安纳波利斯是一片山毛榉和枫树的山地森林。
Of course, roughly 200 years ago, Indianapolis was an upland forest of beech and maple.
当森林里的白天在减短,气温在降低时,苏格兰佩思郡的山毛榉(Fagussylvatica)就进入了一种保存能量的状态。
As daylight dwindles and temperatures drop in this forest in Perthshire, Scotland, beech trees (Fagus sylvatica) switch into power-saver mode.
森林里生长的山毛榉。
森林里生长的山毛榉。
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