Krech also contradicts Martin's exclusion of climatic change as an explanation by asserting that widespread climatic change did indeed occur at the end of the Pleistocene
M的理论排除了天气作为动物灭绝的原因
White observes that Martin's thesis depends on coinciding dates for the arrival of humans and the decline of large animal species, and Krech, though aware that the dates are controversial, does not challenge them
M的理论中特定选取了人类到达和动物灭绝巧合的时间点，K尽管意识到了但没有公然挑战这些时间。-> 高亮部分是为了支持W对M，K的challenge
suggests a much earlier emergence of complex life-forms VS suggests that complex life-forms emerged much earlier
名词表示物品和把事情物品化，这件事情是可以看到时间终点；动词指事情在进行，不带时间终点的属性。某物出现得更早这件事情是一个类似于真理的惯常的性质，不具有时间概念，比显示了一个出现、把它框定成一个物品要好。
E，an earlier emergence than emergence previously thought，an earlier A than B，错误，可以说 A man is elder than me， 但是我们不能说 A elder man is than me，
Noble fails to substantiate this claim, although his argument is impressive when he applies the Marxist concept of "de-skilling"—the use of technology to replace skilled the automation of the machine-tool industry
impressive 代表作者对Noble的正面态度
In Forces of Production, David Noble examines the transformation of the machine-tool industry as the industry moved from reliance on skilled artisans to automation
unlike N/C, its programs were produced not by engineers at their computers, but by skilled machinists, who recorded their own movements to "teach" machines to duplicate those movements
But equally important to Hopi cultural persistence may have been an inherent flexibility in their social system ...
补充新的evidence解释Hopi society stable的原因
前面有not，后面要表示否定用nor，不用or，比如：with none of A or B=with none of A or with B，不能表示B也没有
neither... nor... | not... nor...的用法都是可以的，如：He wasn't there on Monday. Nor on Tuesday, for that matter.及‘I'm not going.’ ‘Nor am I.’
without A or B=without A or without B，ok
Anthropologists studying the Hopi people of the southwestern United States often characterize Hopi society between 1680 and 1880 as surprisingly stable
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题外话 who可以引导非限制性定语从句吗