Word: 效力 (xiàolì) 效力 dictionary entry xiàolì effectiveness; positive effect; to serve (in some capacity) Full dictionary entry for 效力 Example sentences using 效力 2 sentences, showing page 1 of 1. 她愿意为这个公司效力。 Tā yuànyì wèi zhège gōngsī xiàolì. She is willing to serve this company. 这种药的效力很强。 Zhèzhǒng yào de xiàolì hěn qiáng. This medicine is very potent.