单词	cardio
释义	cardio /ˈkɑːdiəʊ / noun [mass noun] informal Cardiovascular exercise.At the gym, I continued with my cardio and started weight training to build muscle.... Attempting to do a lot of cardio after a hard weight training workout would be counterproductive. Light cardio is usually okay, but lifting weights or heavy cardio workouts should be saved for sometime after your breakfast.
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