万世一时

Explanation: All ages have such an opportunity. Described as a rare opportunity. 　　Source: "Records Wu Wangbi Biography": "comet out several locusts, this eternal moment, the worry is also played by labor sage." 　　Examples: His Majesty and energetic today, Tianci Yong-Zhi, this ~ too. ★ Sushi Song "Scholars of the Imperial Examination to be policy"