frontier [ˈfrʌntɪə(r)]以下由轻松背单词网站提供
单词级别第5级基本释义n.国境,边境;尚待开发的领域英英释义a border between two countries , or ( especially in the past in the United States ) a border between land used to grow crops where people live and wild land参考例句The frontier station was starved for food and water. 边防站急需食物和水。Areas near the frontier were rough and lawless in the old days. 过去边远地区混乱不堪,而且没有法律。 推荐阅读 |