5.Studying this could help understand why human evolution picked pace in the last 30,000 years, with social environment being a major contributory factor.
6.General staff shortages, a change in the rules for training junior doctors and abuse of the heath service by both doctors in general practice (GPs) and patients have been identified as major contributory factors.
7.We may with James accept visceral and organic sensations and the memories and associations of them as contributory to primitive emotion, but we must regard them as re-enforcing rather than as initiating the psychosis.
我们可以和 James 一起接受本能和器官感觉以及它们记忆和联想是原始情绪促成因素, 但我们必须将它们视为加而不是引发精神病。机翻
8.He has even moderated his theory that immigration must be bad for the welfare state, which caused a stir in Britain a decade ago: he now thinks welfare can persist even in an immigrant society if it is made more contributory.