问题标题:
Thescientistsfounditwasnotpossibletoflyinthe18thcentury.保持原句意思Thescientistsfound_______________________toflyinthe18thcentury.
问题描述:
Thescientistsfounditwasnotpossibletoflyinthe18thcentury.
保持原句意思
Thescientistsfound_______________________toflyinthe18thcentury.
黎仁蔚回答:
it'simpossible
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