effect, result 证件~ credentials are expired || 药物~. The medicine has lost its effectiveness 
Wirksamkeit Wirksamkeit verlieren 
efficacia perdere efficacia 
efficacité perdre de l'efficacité 
eficacia perder la eficacia Wirkung, Wirksamkeit 功效 katalytische Wirksamkeit (S) 催化活性 Rechtswirksamkeit (S, Rechtsw) 法律效益 Wirksamkeit (S) 灵验 effect, result 83 成效 [-] chéngxiào (achieved-result) effect, result: 取得~ get results || 有/没有~ be effective/not effective || 显著的remarkable results ' 证件~ credentials are expired || 药物~. The medicine has lost its effectiveness 17 失效 [-] shīxiào (lose-function) lose efficacy, loose effectiveness: 证件~ credentials are expired || 药物~. The medicine has lost its effectiveness '
Các nhà khoa học đã chứng minh hiệu quả của loại thuốc này. 
The scientists proved the effectiveness of this medicine.
Die Wissenschaftler bewiesen die Wirksamkeit dieser Medizin.
นักวิทยาศาสตร์ได้พิสูจน์ประสิทธิภาพของยานี้
科学家们证明了这种药物的有效性。