useemploymake use ofutilizeavail oneself ofput to usepracticeapplybring to bearbring into playimplementexertwield
2
engage in physical activity to sustain or improve health and fitness; take exercise.
she still exercised every day
同义词：
work outdo exerciseskeep fittraindrillengage in physical activityinformal：pump iron
3
occupy the thoughts of; worry or perplex.
the knowledge that a larger margin was possible still exercised him
同义词：
worrytroubleconcernmake anxiousbotherdisturbperturbperplexpuzzledistressoccupy someone's thoughtspreoccupyprey on someone's mindgnaw atlie heavy onburdenmake uneasyagitateinformal：bugmake someone scratch their headdo someone's head inarchaic：pother
