1·Once this happens, blood appears in the vomit and faeces.
一旦出现此种症状，呕吐物和粪便中就会带血。
2·Similarly, it is no longer necessary to kill whales to work out what they have been eating, as this can be determined from DNA in samples of faeces.
同样的，现在也没有必要以杀死鲸鱼的方式来了解鲸鱼的摄食习性，因为这可从鲸鱼的粪便样本里的DNA中得知。
3·Epidemiological investigation identified a possible risk factor as exposure to wild bird faeces found around the house.
流行病学调查发现，接触其住房周围野禽的粪便可能是一个风险因素。
4·The source of exposure for the initial case is still under investigation, with exposure to infected poultry or an environment contaminated by their faeces considered the most plausible source.
该最初病例的接触源仍在调查之中，接触受感染的家禽或受其粪便污染的环境被认为似乎是最合理的接触源。
5·Good hygienic slaughtering practices reduce the contamination of carcasses by faeces, but will not guarantee the absence of Campylobacter from meat and meat products.
良好的卫生屠宰规范可减少粪便对动物尸体造成的污染，但并不会保证在肉类和肉制品中完全没有弯曲杆菌。
1·The faeces contain nitrogen which fertilizes the soil.
排泄物含有肥沃土壤的氮。
—— 《柯林斯英汉双解大词典》
2·In one, involving salmon, some fish froze to death and piscine faeces turned the nearby ocean floor into a wasteland.
原因之一是，包括大马哈鱼在内，一些鱼被冻死，加上鱼的排泄物使得附近的海洋洋底成为无法生息的荒原。
3·This two-tank system produces more methane than conventional methods because different strains of bacteria, which chew up different components of faeces, work better at different temperatures.
较之传统的发酵工序，这种“双槽系统”能够产生更多的沼气，因为分解排泄物的细菌种类有所不同，于是适合它们分解废物的温度需求也有所不同。
4·A new study has found that people with Intermittent explosive Disorder (IED) - characterised by explosive bouts of rage - are twice as likely to have been infected by a parasite found in cat faeces.
最新研究发现，间歇爆发性精神障碍(IED)患者(以突发性情绪激动为主要症状)曾经受猫排泄物中寄生虫感染的几率是其他人的两倍。
5·Cats are known to pass the parasite on to human by shedding its eggs in their faeces.
据悉，猫通过排泄物将弓形虫卵传给人类。