1. No ailment was found, and he investigated again. 没有发现任何毛病，于是他又检查了一遍。
2. Asthma, a bronchial condition, is much less common ailment than hay fever, an allergic inflammation of the nasal passages. 哮喘是一种支气管疾病，比花粉热（一种鼻道的过敏性炎症）要少见得多。
3. If identical twins are more similar to each other with respect to an ailment than fraternal twins are, then vulnerability to the disease must be rooted at least in part in heredity. 如果同卵双胞胎彼此在疾病方面比异卵双胞胎更相似，那么这种疾病的易感性至少在一定程度上是由遗传造成的。
4. The boy refuses to go to school on [under] the pretext of illness [an ailment, sickness]. 这孩子装病不去上学。
5. This is a common ailment in the region. 这一疾病成了这一地区的普遍疾病。
