古代湖南人才稀少的原因非常复杂。
The reasons for lack of talents in ancient Hunan are very complicated.
儿童遗弃的类型和原因非常复杂。
The causes and patterns of child abandonment in China are complicated.
我相信这原因非常复杂也不容易解决。
The reasons for this are complex and not, I believe, easy to resolve.
他还指出，短视的原因非常复杂，没有药物可以治疗近视。
He also pointed out that the causes for shortsightedness are so complicated that no medicine can cure shortsightedness.
高血压的发病原因非常复杂，可能是多种因素综合作用的结果。
Persons with hypertension are much more possibly hit by cardiovascular and cerebrovascular accidents than those with normal blood pressure.
青少年违法犯罪的原因非常复杂，概括起来，主要有主体因素和主体外因素。
The reason of adolescent illegal crime is extremely complex. Recapitulation mainly has the subject factor and the outside subject factor.
玻璃幕墙渗水原因非常复杂，涉及到设计、材料使用、施工和管理等各个方面。
The reasons for the water seepage of glass block screen wall are very complicated which involves many aspects such as the design, material selection, construction and management.
据马泽中表示，导致这种不成熟的原因非常复杂，但是家庭、教育和社会环境在其中发挥了巨大的作用。
According to ma, the reason for this immaturity is complex, but family, education and social environment play a big role.
阿尔茨海默氏症和其他痴呆症的发病原因非常复杂，因为大脑中发生了很多变化，因此为了对它们进行有效治疗，需要多种药物协同作战。
'Alzheimer's and other dementias are complex, with many things happening in the brain, so it's likely that we'll need several drugs to treat them effectively.
我相信部分原因的确是这样，尽管就这一点也非常复杂。
I'm sure it's partly so, though even that point is not straightforward.
“由于陆地形状的原因，整个系统变得非常，非常复杂，这让模拟印度洋上大气中的风向规律变化真的很有挑战性，”Han称。
"It has been really challenging to simulate atmospheric wind-pattern change over the Indian Ocean because the system is very, very complicated because of the land," han said.
“由于陆地形状的原因，整个系统变得非常，非常复杂，这让模拟印度洋上大气中的风向规律变化真的很有挑战性，”Han称。
“It has been really challenging to simulate atmospheric wind-pattern change over the Indian Ocean because the system is very, very complicated because of the land,” Han said.
不管现在身处何地，黑人都是非洲人的后裔，但是数百年来，由于种种原因，他们的遗传基因已经变得多样化且非常复杂。
Wherever they are now, black people are descended from Africans, but over the centuries their genetic heritage has become diversified and complicated because of various reasons.
肺癌是当前常见的恶性肿瘤之一，其致病原因也非常复杂。
Lung cancer is a familiar malignancy currently, the nosogenesis is very complex.
由于地方性风的原因，当地的水文结构非常复杂。
The hydrographic structure was complex, and appeared to be a response to local winds.
这种变化的背后，有着非常复杂的原因。
这种变化的背后，有着非常复杂的原因。
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