【上位】 make an effort or attempt; "He tried to shake off his fears"; "The infant had essayed a few wobbly steps"; "The police attempted to stop the thief"; "He sought to improve himself"; "She always seeks to do good in the world" 努力する、または試みる。
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【上位】 participate in games or sport; "We played hockey all afternoon"; "play cards"; "Pele played for the Brazilian teams in many important matches" ゲームかスポーツに参加する。
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【上位】 a venture undertaken without regard to possible loss or injury; "he saw the rewards but not the risks of crime"; "there was a danger he would do the wrong thing" 死やけがを覚悟の上で行う冒険。
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【上位】 an investment that is very risky but could yield great profits; "he knew the stock was a speculation when he bought it" 大きリスクを伴うが大きな利益を産出するかもしれない投資。
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