再加上6千5百万年前的环境因素，伯克(Bottke)博士估计，恐龙杀手有90%以上的可能是Baptistina之女。
Taking into account the circumstances that pertained 65m years ago, Dr Bottke reckons it more than 90% probable that the dinosaur killer was one of Baptistina's daughters.
五岁以下儿童中与环境有关的主要杀手？
Major environment-related killers in children under five years of age.
大多数疾病—包括糠尿病和一号杀手，心脏病—是由复杂的多基因和环境因素相互作用引起的，如日常饮食，锻炼和吸烟。
Most diseases - including diabetes and the No. 1 killer, heart disease - are caused by complex interactions of multiple genes and environmental factors, such as diet, exercise and smoking.
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