Home/oxyneurineoxyneurine/ok-si-noor-een, -in, -nyoor-/US // ˌɒk sɪˈnʊər in, -ɪn, -ˈnyʊər- //氧氮素,氧氮芥,氧氮,氧气素Definitionsn.名词 noun1 Chemistry.: betaine. Level 5Browse all words →