单词	self-propulsion
释义	self-propulsion noun self-pro·​pul·​sion ˌself-prə-ˈpəl-shən  : propulsion by one's own power Word History First Known Use 1874, in the meaning defined above
随便看	trap strip trap tree trap weir trap-door spider trap-door spiders Trapa Trapaceae trapaceaes trapae Trapani trapanned trapanning trapans trapas trapball trapballs trapdoor trapdoor spider trapdoor spiders trapdoors trapes trapesed trapeses trapesing trapesings

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