“Light Kung Fu” and Reference 「輕功」與參照 — Jennifer’s World

The picture shows my study room with a gym, but I barely have time to work out. So, I came up with my own method. I took off two dumbbell “wheels” that weigh a total of 25 pounds, put them in a backpack, and carry it on my back whenever I go up and down the stairs. Sometimes I also carry it when I do things downstairs.