Igor Ivanovich Sikorsky
| Noun | 1. |  Igor Ivanovich Sikorsky - United States industrialist (born in Russia) who designed the first four-engine airplane and the first mass-produced helicopter (1889-1972) |
英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。