大力

energetically / vigorously

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

power / force / strength / ability / strenuously

strong man / Hercules

Heracles (Greek mythology) / Hercules (Roman mythology)

FIFA World Cup trophy

locking pliers / mole grips

locking pliers; mole grips

to try harder / to redouble one's efforts

Popeye (the Sailor)