Homo erectusyoudaoicibaDictYouDict[Homo erectus 词源字典]
"An extinct hominid that is believed to have spread from Africa to Europe and Asia about 2 million years ago and appears to have survived in Asia to at least 150,000 years ago. Compare Java, Peking man, Solo. Also in extended use: man as a biped", Early 20th cent.; earliest use found in Popular Science Monthly. From scientific Latin Homo erectus, species name from Homo, genus name + erectus, specific name, specific use of classical Latin ērectus, so called on account of its upright (fully bipedal) posture. Compare earlier Pithecanthropus.[Homo erectus etymology, Homo erectus origin, 英语词源]