The elderly are usually more affluent in their time, and they no longer have to run around for life, and at the same time, they are also in a state of aimlessness;

Some old people are addicted to chess and card art, some old people fall into the trap of serving their grandchildren, and some old people are keen on their parents' shortcomings.

However, for historical reasons, the current old people are literate

"Universal Personal Trainer" Chapter 163 Honoring the Elderly Starts with Science is hitting in the hand, please wait a moment,

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