求翻译：高跟鞋历史中最重要的时期，早期的高跟鞋因造鞋技术及用料的限制，鞋跟只能造成漏斗状，即跟部自鞋底开始收窄，到底部再扩大。鞋跟后来虽可发展成笔直，却依然欠缺线条美。直至50年代的钢钉技术改革了高跟鞋，设计师才能设计出现今女士又爱又恨的尖细鞋跟是什么意思？

Heels of the most important period of history, the early high heels for shoe-making technology and material constraints, can only result in funnel-shaped heel, that is with the Department since the soles began to narrow, in the end the Ministry of further expansion. Although the heel can later devel

high-heel shoes the most momentous in the history of the early days, high-heel shoes shoe because of restrictions on technology and materials used for heel, funnel, can only result from shoe soles, that is, the same as department Department began to expand, what is narrowed. Although it may develop

In because the high-heeled shoes history the most important time, the early high-heeled shoes make the shoes technology and the needed materials limit, the shoe heel only can create the funnel shape, namely starts with from the shoe sole to squeeze, expands again to the base.Although the shoe heel a

High heels in the history of the most important period, early high heel shoe technology and needed materials limit, heel can only cause a funnel, heel shoe sole started narrowing to bottom and then expanded. Heel and later can develop into a straight, but still lacks the line the United States. 50 n

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