You can answer with a specific age or age range when you think people are the happiest. You can also explain your reasoning, such as childhood being carefree, or adulthood bringing independence and achievement.

你可以回答一个具体的年龄或年龄范围，说明你认为人们在哪个阶段最快乐。你也可以解释你的理由，比如童年无忧无虑，或者成年带来自主和成就感。