ngần ngại 
to hesitate; hesitant, reluctant; hesitance, reluctance [ ngần ] : very white, creamy white, silvery white; quantity, number; limit, bound
[ ngại ] : to worry, fear, be troubled by; worried, hesitant, fearful
Most Common Compounds Set 1:
Most Common Compounds Set 2 :
không ngần ngại to not hesitate (to do something)