今天我们要学的词是 experimental. Experimental 形容词，意思是试验的。埃博拉疫情已造成数百人死亡。WHO experts are considering whether to use experimental drugs to treat the Ebola outbreak. 世界卫生组织正在考虑是否采用尚在试验阶段的药物，为埃博拉疫情患者提供治疗。美国疾病预防控制中心说，The experimental serum that was used to treat two American patients is in very limited supply. 用于治疗两名美国患者的试验性血清的供给量十分有限。好的，今天我们学习的词是 experimental, experimental, experimental...