［動詞］ｗork out；［名詞］working out
- I have recently become obsessed with fitness.
The gym is a place specially designed for fitness.
I take a shower every time I finish working out.
There are many companies designing ergonomic fitness equipment.
I go to the gym twice a week to work out.
The process of fitness is very hard, but in order to maintain a good figure, fitness is worthwhile.
Michelle and I have an appointment to go to the gym to work out together.
I haven't worked out for two months.
I decided to increase the intensity of fitness.
Mark is a professional fitness trainer.