您要查找的是不是：
- Porcine parvovirus(PPV),a major cause of reproductive failure in swine,resulted in early embryonic death,fetal death,still births, and delayed return to estrus. 猪细小病毒（PorcineParvovirus，PPV）是一自主型细小病毒（Autonomousparvovirus），它是引起畸胎的主要因素之一。
- Etiology: The delayed return of the fetal midgut in the abdomen has been reported to result in midgut olulus as well as other midgut pathologies as intestinal obstruction and short bowel syndrome . 病因：据报导胎儿腹部中肠回旋延迟会导致中肠扭转和其他中肠病变，象肠梗阻和短肠综合征。
- He lost his way, which delayed him considerably. 他迷了路，这使他耽搁了很久。
- Our sailing boat was delayed by contrary winds. 我们的帆船被逆风耽搁了。
- It may well be that the train is delayed. 很有可能火车晚点了。
- He is delayed because his taxi has an accident. 由于他的出租车出了故障，他被耽误了。
- The train was delayed because of ice on the line. 火车因铁轨结冰而误点。
- I buy him a drink in return for his help. 我请他喝酒以酬谢他的帮助。
- We look forward to the return of spring. 我们期待着春天的到来。
- The flight was delayed owing to technical reasons. 这次飞行由于技术的原因而被推迟。
- He avowed that he would never return. 他声明他决不回来了。
- His long absence from work delayed his promotion. 他长期不上班，把他的提升给耽误了。
- The plane's landing was delayed because of fog. 飞机因大雾推迟降落。
- The uncertain weather delayed our departure. 天气变换莫测，延误了我们启程。
- He makes a return and go back to the hotel. 他掉转车头，驶回饭店。
- He might think it polite to return the visit. 他可能认为回访比较合乎礼仪。
- He swore by his honour he would return the bike. 他以自己的名誉发誓一定归还自行车。
- She wired (us) that she would be delayed. 她给我们打来电报说她得晚到。
- The normal return fare to New York is fifty-six. 去纽约的来回票标准价是56元。
- He assist me with my income tax return. 他帮助我填写所得税申报单。
