n.无效果，不起作用，无能力...

Relapses of the malady, ineffectiveness of different drug regimens and even resistance to drugs are emerging.疾病的反复发作, 不同药物治疗方案的无效,甚至耐药性正在出现....

ineffectiveness的音标：ineffectiveness的英式发音音标为：[ˌɪnɪ'fektɪvnəs]ineffectiveness的美式发音音标为：[ˌɪnɪ'fektɪvnəs]...