frontier
UK [frʌn'tɪər] UK ['--] US [-'tɪr] noun countable
ADVANCED
■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 国境，边境；（尤指美国旧时开发区与未开发地带之间的）边界•Some of the frontier between Germany and Poland follows the course of the river Oder德国与波兰的部分边界是沿奥德河划分的。 •Nepal has frontiers with both India and China.尼泊尔与中国和印度都接壤。 •They lived in a town close to the frontier.他们居住在一个离边界很近的城镇。
UK [frʌn'tɪər] UK ['--] US [-'tɪr] noun countable
the frontiers of sth
■the limits of what is known or what has been done before in an area of knowledge or an activity …的知识前沿；…的疆界•the frontiers of science and technology科技前沿 |