单词	pin something down
释义	请查阅词条：pin
随便看	conservancies conservancy conservant conservate conservation conservational conservational conservation architect conservation area conservation areas conservation biologist conservation biology conservation easement conservation farming conservationism conservationist conservationists conservation law conservation of areas conservation of charge conservation of energy conservation officer conservation of mass conservation park conservation status 大块头大型大堂大声疾呼大处落墨大多大多数大大大大咧咧大大落落 NW_Lagerdeckelbefestigungsbohrung Nylon Nylon Nylonfaser Nylonharz Nylon_Luftreinigungsventil Nylonreifen Nylonüberzug Nymph Nymphe