Exploring the woodlands on a warm summers evening, he spotted this lone caterpillar delicately balanced on the stem of a black alder leaf.
在一个温暖夏天的夜晚他探究森林，发现一条孤零零的毛毛虫微妙的平衡在一个黑色桤木叶的茎上。
Soon after NASA's robotic rover Opportunity began exploring Mars, it found minerals and rocks that its handlers said were evidence of a warm, wet history.
在美国航空与太空总署的机遇机器人探测器开始探究火星后不久，它发现了矿物，研究者说它的岩石是湿的温暖历史的证据。
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