[N-COUNT 可数名词]天文台;观象台;天文观测站 An observatory is a building with a large telescope from which scientists study things such as the planets by watching them.
Oxford
ob·ser·va·tory/əbˈzɜːvətri; NAmEəbˈzɜːrvətɔːri/noun(pluralob·ser·va·tories)a special building from which scientists watch the stars, the weather, etc. 天文台;天文观测站;气象台observatoryobservatoriesob·ser·va·tory/əbˈzɜːvətri; NAmEəbˈzɜːrvətɔːri/