单词	cross-staff
释义	cross-staff noun ˈkrȯs-ˌstaf  : an instrument formerly used at sea for taking the altitude of a celestial body Word History First Known Use 1582, in the meaning defined above
随便看	Papuan languages papuaner papuanest papuanner papuannest papuans papuas papulae papular papulated papule papules papuliferous papulo- papulose papulous papyri papyrin papyrine papyro- papyrological papyrologies papyrologist papyrologists papyrology

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。