In a village of less than 100 people, the fact that there are so many very aged people probably has a close relationship to their living environment, their often going to the fields to work, and their habit of continual labor.
在一個不到百人的村子，卻有這麼多人瑞，或許與他們的生活環境和經常下田工作、持續勞動等因素，有著密不可分的關係。