您要查找的是不是：
- a recrudescence of influenza 流行性感冒的新发作
- A few cases of influenza cropped out every now and then. 不时出现一些流行性感冒的病例。
- She is laid up with a nasty attack of influenza. 她因感染严重的流行性感冒而卧病在床。
- This attack of influenza has crocked him up. 这次流行性感冒把他的身体弄垮了。
- This attack of influenza has really crocked him up. 这次流行性感冒确实把他的身体搞垮了。
- The last attack of influenza left me rather grogg. 上次患流感使得我软弱无力。
- What are the characteristics of influenza viruses? 流感病毒有甚么特徵?
- The attack of influenza has crocked him up. 这次流行性感冒的来袭使他变衰弱。
- They took steps to prevent the spread of influenza. 他们采取措施阻止流感的传播。
- This attack of influenza has crocked me up. 这场流行性感冒使我衰弱得无法工作。
- An attack of influenza soon pulls you down . 害一次流行性感冒很快就使你虚弱下来。
- During an epidemic of influenza the air in trains and buses quickly becomes infected with germs. 流感流行期间，火车和公共汽车的空气很快便爱到病毒污染。
- What are the symptoms of influenza and its transmission route? 染上流感后会出现甚么病徵?流感有何传播途径?
- Frequent virus variation is the major cause of influenza epidemics. 摘要流感病毒的不断变异是造成流感经常流行的主要原因。
- The last attack of influenza has left me rather groggy. 上次患流行性感冒后使我至今软弱无力。
- Aim:To study the causes of recrudescence of intra-spinal canal tumor after operation. 目的：探讨椎管内肿瘤术后复发的原因。
- Objective:To search the effective method that may prevent recrudescence of bladder cancer. 目的:寻求预防膀胱癌术后复发的更有效方法。
- Conclusion: CT perfusion imaging has significant value in diagnosing, inspecting curative effect and recrudescence of primary hepatocellular carcinoma. 结论：CT灌注成像对肝癌诊断及疗效评估、监测肿瘤复发方面具有重要价值。
- A bad attack of influenza can lay you by for several weeks. 严重的流感会使你卧床好几周。
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
