frontier
n
1 [C]
(a) ~ (between sth and sth); ~ (with sth) border between two countries 國界; 邊界
the frontier between Austria and Hungary 奧地利和匈牙利之間的邊界.
(b) land on either side of such a border 邊疆; 邊陲; 邊境; 國境
[attrib 作定語]
a frontier zone 邊境地帶
a frontier town 邊疆城鎮(zhèn)
frontier disputes 邊界爭端.
2 the frontier [sing]
(esp US) extreme limit of settled land, beyond which the country is wild and undeveloped 已開發(fā)地區(qū)的邊緣地帶
Beyond the frontier lay very real dangers. 在開發(fā)地區(qū)以外十分危險.
3 the frontiers [pl]
extreme limit, esp of knowledge about sth 極限(尤指有關(guān)某事物的知識的); 尖端; 邊緣
advance the frontiers of science 拓展科學的領(lǐng)域
teach near the frontiers of one's subject, ie give recently discovered information 講授個人專業(yè)領(lǐng)域的新知識. =>Usage at border 用法見border.