But for unknown reasons, in the remaining cases the twisting did not presage a flare.

但是不知道什么原因，其他三分之二的涡流扭曲没有预兆太阳风暴。

youdao

The zoo harvests bamboo on its premises and at other locations in the area, but for unknown reasons, the stands aren't regrowing normally.

动物园在园内及本地其他几个地方种有竹子，但不知怎么的，这些竹最近没有像往常那样正常生长了。

youdao

When type 2 diabetes is diagnosed, the pancreas is usually producing enough insulin, but for unknown reasons, the body cannot use the insulin effectively, a condition called insulin resistance.

当病人被确诊为2型糖尿病时，他们的胰腺通常能够分泌足够的胰岛素，但是因为一些不明的原因，他们的身体不能有效的利用胰岛素，这种症状称之为抗胰岛素性（insulin resistance）。

youdao

Professionals should be able to do the same but for reasons unknown, they are almost always way off.

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Last March the Canadian government halted prosecution, for reasons unknown, but could start again.

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Authorities say Tamerlan Tsarnaev traveled to Russia from January to July 2012, but the reasons for his travel are unknown.

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