【上位】 something immaterial that stands in the way and must be circumvented or surmounted; "lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan" 行く手をふさいでいる重要でないもので、回避するなり乗り越えるなりしなくてはならない。
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【上位】 the act of jumping; propelling yourself off the ground; "he advanced in a series of jumps"; "the jumping was unexpected" 飛び跳ねる行為。地面から自分自身を飛び上げさせること。
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