Other reasons, according to the study, include personal fulfillment such as staying mentally fit, preventing boredom or avoiding depression.
根据研究，其他原因包括个人满足感，例如保持心理健康、防止无聊或避免抑郁。
boredom can be relieved after retirement.
退休后可以缓解无聊。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。