Last Updated：2025/11/23
Sentence
実演中に技術者たちは長期間の宇宙推進を試験するためにいくつかの核融合推進ロケットを打ち上げた。
Quizzes for review
During the demonstration, engineers launched several fusion rockets to test long-duration space propulsion.
See correct answer
During the demonstration, engineers launched several fusion rockets to test long-duration space propulsion.
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