effective; effectual;produce good results ? 懲前毖后、治病救人的方針，是長期以來～的方針。Learning from past mistakes to avoid future ones and curing the sickness to save the patient is a policy which has long proved effective.
行之有效
effective;effectual ～的療法 effectual remedy
行之有效xínɡ zhī yǒu xiào
實(shí)行起來非常有效果。effective, effectual, be proven effective in practice