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[最佳答案] Kids born in poor families can't get as much as those born in wealthy ones. They tend to treasure what they have. Also, they have more goals than wealthy kids do. They need to think about how they can overtake wealthy kids. The only way to achieve the goal is to worker much harder than wealthy kids. Therefore, poor kids have stronger will and determination, which is the key to success. The more they learn, the more mature they will become. By and by, when rich kids are still playing toys, poor kids have mastered many survival skills.