| 单词 | helicopter |
| 释义 | Word Frequency helicopter(ˈhɛlɪˌkɒptə) noun 1. an aircraft capable of hover, vertical flight, and horizontal flight in any direction. Most get all of their lift and propulsion from the rotation of overhead blades See also autogiro verb 2. to transport (people or things) or (of people or things) to be transported by helicopter Word origin C19: from French hélicoptère, from helico- + Greek pteron wing |
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