Word: 长效 (chángxiào) Traditional: 長效 长效 dictionary entry chángxiào to be effective over an extended period Full dictionary entry for 长效 Example sentences using 长效 2 sentences, showing page 1 of 1. 政府需要建立长效管理机制。 Zhèngfǔ xūyào jiànlì chángxiào guǎnlǐ jīzhì. The government needs to set up a long-term management mechanism. 这种药真的能长效吗？ Zhèzhǒng yào zhēnde néng chángxiào ma? Can this medicine really stay effective for a long time?