跑步机的地道表达是 “ treadmill [ˈtredmɪl] ”（A treadmill is a piece of equipment, for example an exercise machine, consisting of a wheel with steps around its edge or a continuous moving belt. The weight of a ...

“Hedonic treadmill” refers to the tendency to always go back to the same level of happiness despite positive life events. Personal happiness does seem to increase as family incomes rise, a phenomenon ...