这些运输工具〔理查德·道金斯称之为“伐木机器人(lumbering robot)”〕就是动物和植物，它们是第一复制因子多产的、设计精巧的产物。
These vehicles - the lumbering robots, as Richard Dawkins calls them - are animals and plants, the prolific and exquisitely designed products of the first replicator.
19世纪晚期，为了向这一地区的伐木场和棉花厂提供动力，这条小河上曾筑起一道水坝。
The creek was dammed in the late 19th century to provide power to the area's lumber and cotton mills.
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