He said the reasons for this are unclear, but speculated that surgeons might prefer radical nephrectomy because it is technically less challenging to perform and has a lower risk for complications.
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She said it was not known who sent the video to her niece, but speculated that someone connected with the killing may have been seeking an extra measure of revenge.
Pasqualina表示现在还不知道是谁把这段录像发给了她的侄女,但她估计是与罪案有关的人想要对Lucia一家实施额外的报复。
The team said it did not know exactly why probiotics may be harmful but speculated the supplements may somehow boost demand for oxygen and worsen already reduced blood flow.
研究组说他们并不确切的了解为何用微生物制剂有害,但推测是不知什么原因能推动对氧的需求,恶化原本就减慢的血液流动。
Perhaps the Achuar do have shame-related dreams but are reluctant to share them with outsiders, they speculated.
他们猜测,也许阿丘阿尔人也的确有出现过与“羞耻”有关的梦境,只是他们不愿意与告诉外人。
In fact, I don't know if in the news the pioneer in this is a man named Judah Folkman, who is a surgeon who first speculated that this was important, and sadly he died on Monday, but had a dramatic impact on our understanding of how cancers develop in people and new approaches.
实际上,我不清楚这个新闻中提到的人,是不是犹太?福克曼,这个领域的先驱,他是个外科医生,最先提出了这个重要的理论,不过不幸的是他在本周一去世了,他让我们对癌症有了新认识,带给我们治疗癌症的新思路
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