So far we have covered biodiversity in the hardwood forest here in the upper peninsula of Michigan from a number of angles.
到目前为止，我们已经从多个角度报道了密歇根上半岛的硬木森林的生物多样性。
A solar spike seen on the morning of December 7th in Allegan, Michigan. The sight id caused by wintery ice crystals in the Earth's upper atmosphere refracting light from the sun.
日柱，摄于12月7日的早晨，密西根州阿勒甘地区。它是由地球大气层顶部冰晶体折射太阳光而形成的。
A solar spike seen on the morning of December 7th in Allegan, Michigan. The sight id caused by wintery ice crystals in the Earth's upper atmosphere refracting light from the sun.
日柱，摄于12月7日的早晨，密西根州阿勒甘地区。它是由地球大气层顶部冰晶体折射太阳光而形成的。
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