Home/cosmonauticscosmonautics/koz-muh-naw-tiks, -not-iks/US // ˌkɒz məˈnɔ tɪks, -ˈnɒt ɪks //宇航学,宇宙航行学,宇航员,宇航Definitionsn.名词 noun1: astronautics, especially as applied to space flight.Level 4Browse all words →