Frontier

(noun.) an undeveloped field of study; a topic inviting research and development; 'he worked at the frontier of brain science'.

(noun.) an international boundary or the area (often fortified) immediately inside the boundary.

(noun.) a wilderness at the edge of a settled area of a country; 'the individualism of the frontier in Andrew Jackson's day'.

校对:伍德罗

• The frontier is a long way back. 欧内斯特·海明威. 永别了,武器.
• There was no such settling down behind a final frontier on the part of the Chinese as we see in the case of the Romans at the Rhine and Danube. 赫伯特·乔治·威尔斯. 世界史纲.
• It was a little particular of Providence,' said the foreign gentleman, laughing; 'for the frontier is not large. 查尔斯·狄更斯. 我们共同的朋友.
• And an army of emigrés, French nobles and gentlemen, an army largely of officers, was allowed to accumulate close to the frontier. 赫伯特·乔治·威尔斯. 世界史纲.
• You saw that although it was a case of a frontier ruler, yet there was an air of distinction and elegance. 赫伯特·乔治·威尔斯. 世界史纲.
• In 1138 the capital was shifted from Nankin, which was now too close to the northern frontier, to the city of Han Chau on the coast. 赫伯特·乔治·威尔斯. 世界史纲.
• The Western Union Company followed the stage-coach across the plains to California, and soon the frontier towns were linked to the large cities of the East. 鲁伯特·萨金特·荷兰. 历史性发明.
• If the French help at all, if only they leave the frontier open and if we get planes from America they can never finish with us. 欧内斯特·海明威. 丧钟为谁而鸣.
• But our frontier people call themselves Christians! 本杰明·富兰克林. 富兰克林自传.
• Encouraged by this, a fifth crusade (1431) crossed the frontier under Frederick, Margrave of Brandenburg. 赫伯特·乔治·威尔斯. 世界史纲.
• Now the short eastern French frontier was very strongly defended. 赫伯特·乔治·威尔斯. 世界史纲.
• I don't think they let the Italians cross the frontier. 欧内斯特·海明威. 永别了,武器.
• We have to deal with all grades of life from the frontier to the metropolis, with men who differ in sense of fact, in ideal, in the very groundwork of morals. 沃尔特·李普曼. 政治序论.
• The frontier counties all along the continent having been frequently ravaged by the enemy, and greatly impoverished, are able to pay very little tax. 本杰明·富兰克林. 富兰克林自传.
• But the Belgian frontier of France was longer and less strongly defended. 赫伯特·乔治·威尔斯. 世界史纲.
• Repeated depredations on the frontiers had exasperated the inhabitants to such a degree, that they determined on revenge upon every Indian. 本杰明·富兰克林. 富兰克林自传.
• Its founder was Clovis (481-511), who began as a small king in Belgium and ended with his southern frontiers nearly at the Pyrenees. 赫伯特·乔治·威尔斯. 世界史纲.
• They had no knowledge of geography beyond the range of the Mediterranean basin and the frontiers of Persia. 赫伯特·乔治·威尔斯. 世界史纲.
• His allies would neither let him give the Russian people land nor peace beyond their frontiers. 赫伯特·乔治·威尔斯. 世界史纲.
• Perhaps the ease of travel, the popularizing of knowledge, the break-down of frontiers have given us a new interest in human life by showing how temporary are all its instruments. 沃尔特·李普曼. 政治序论.
• The disputes between the proprietaries and the people of the province continued in full force, although a war was raging on the frontiers. 本杰明·富兰克林. 富兰克林自传.
• The best of the common men were in the armies, away beyond the frontiers. 赫伯特·乔治·威尔斯. 世界史纲.
• Their political interests demanded a steadfast inquiry into the state of affairs beyond their frontiers, and yet that inquiry was never made. 赫伯特·乔治·威尔斯. 世界史纲.
• Moreover, all the powers fought tooth and nail at the Conference for strategic frontiers--the ugliest symptom of all. 赫伯特·乔治·威尔斯. 世界史纲.
• The king and queen make a progress to the frontiers. 乔纳森·斯威夫特. 格列佛游记.
• But we may assert that French science will have tried, by obeying the law of humanity, t o extend the frontiers of life. 李贝. 西洋科学史.
• The world from the Danube to the Chinese frontiers was still largely a nomadic world, with towns and cities growing up upon the chief trade routes. 赫伯特·乔治·威尔斯. 世界史纲.

录入:尼科尔