1·Cancer is a kind of persistent ailment.
癌症是一种顽症。
2·Land annexation was a persistent ailment of the Ancient China.
土地兼并是古代中国的一个顽症。
3·Enterprises' receivable funds resulting in selling on credit is a persistent ailment for them.
由赊销方式形成的企业应收账款一直是困绕企业的顽症。
4·The formation of the persistent ailment of street peace order is affected by various elements.
街面治安顽点的形成受各种因素的影响。
5·Persistent ailment of curing mainly single neurosis and mother love and overflowing etc., to failing in love and lovesickness have obvious results either.
主治单身恐惧症及母爱泛滥等顽疾，对失恋和相思病也有明显效果。
6·It solved effectively the persistent ailment of water logging in the areas by investigation and study to find out the ailment and put forward the option of reforming.
通过调查研究，找出病症，提出改造方案。有效地解决了小区的积水顽症。
7·English teaching experiments have confirmed that lots of planned language practice can help get rid of the persistent ailment in the field of college English teaching.
英语教学实验支持这种设想，证实用大量有计划的语言实践活动能够医治大学英语教学领域的顽症，烧开这壶久烧不开的温水。
8·The selling beyond agreed area is one kind of marketing persistent ailment that is easy to be ignored, but has very strong antipersonnel force to the brand and enterprise.
所谓窜货，即渠道的跨区销售，是一种极易被忽视，但又对品牌和企业经营具有很强杀伤力的营销顽症。
9·Chronic obstructive pulmonary disease (COPD) is a lung ailment that is characterized by a persistent blockage of airflow from the lungs.
慢性阻塞性肺病是一种以持续阻塞来自肺部的气流为特征的肺部疾病。