n. 练习题, 演习；运动

n the activity of exerting your muscles in various ways to keep fit

n the act of using

n systematic training by multiple repetitions

n a task performed or problem solved in order to develop skill or understanding

n (usually plural) a ceremony that involves processions and speeches

v put to use

v carry out or practice; as of jobs and professions

v give a workout to

v do physical exercise

v learn by repetition