If you can guess the weight of the cake, you win a prize.如果你能猜出这个蛋糕的重量，就可以赢取一份奖品。If you didn't win a prize, better luck next time.如果没获奖，愿你下次好运。The writer of the best essay will win a prize.最佳文章作者将获得奖品。The first ten correct answers will win a prize.头十个正确的答案可以获奖。