Scientists do not know what causes acrylamide to form but they believe it occurs as a result of a chemical process during baking, frying, or grilling.
科学家并不知道是什么导致丙烯酰胺的形成，但是他们相信它是在烘焙、油煎、烧烤或烘烤过程中产生的一种化学物质。
Doctors do not know what causes this process.
医生也不了解这个过程的原因。
Scientists still do not know what causes most diabetes.
科学家还不知道大多数糖尿病是什么原因造成的。
It 's a dull sort of pain, and I do not know what causes it.
这是一种隐痛。我不知道是什么引起的。
Due to low awareness of lung conditions, many COPD patients in Georgia do not know what causes the disease.
由于对肺病的认识很少，格鲁吉亚的许多慢性阻塞性肺病患者并不知道病因。
I do not know what causes the refuse and escape of Chen Wei's art Personality for the noisy world, vanity fashion and this world?
我不知道陈蔚的艺术个性中对喧嚣世界、浮华时尚与滚滚红尘的拒绝与逃逸是基于何种缘由？
We do not know what causes many people had eaten all this, but some will not, I eat the first time it was like this, so I do not wish that a factor.
也不知什么原因很多人都吃了会这样的，但有些人不会，我第一次吃的时候也是这个样子，所以我现在也不想吃这玩艺了。
Researchers still do not know what causes bipolar disorder, although it is argued that family history is presently the strongest predictive factor for being diagnosed with bipolar.
尽管家族因素是躁郁症预测的重要影响因素，研究者们仍不清楚躁郁症的具体原因。
Scientists do not know exactly what causes acrylamide to form but they believe it occurs as a result of a chemical process during baking, frying, grilling or toasting.
科学家并不确定是什么导致丙烯酰胺的形成，但是他们相信这是在烘焙，油煎，烧烤或烘烤过程中产生的一种化学物质。
But they do not know what "glue" causes the pairing in the high-temperature (" high-Tc ") superconductors.
但在高温超导体里，让这些电子配合成对的“黏胶”是什么，物理学家就一无所知了。
We need to know what not to do because bad habits and wrong methods, not insufficient practice, are the main causes of a lack of progress.
这是很重要的，我们必须知道什么不该做，因为妨碍进展的主要原因是坏习惯和错误的方法，并非不足的练习。
We need to know what not to do because bad habits and wrong methods, not insufficient practice, are the main causes of a lack of progress.
这是很重要的，我们必须知道什么不该做，因为妨碍进展的主要原因是坏习惯和错误的方法，并非不足的练习。
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