bồi dưỡng

verb  

• To feed up, to foster, to improve, to cultivate
  • ăn uống đầy đủ, nghỉ ngơi thoải mái để bồi dưỡng sức khỏe
    to have adequate food and a good rest in order to improve one's health
  • tiền bồi dưỡng
    feeding-up allowances
  • bồi dưỡng nghiệp vụ
    to foster one's professional ability

• To recycle