请英语高手帮我看看这个句子But tumors also have their own genetic signature ——four to seven genetic changes that are critical to turning ,say ,a normal breast or colon or liver cell into a cancerous one这个句子中four to seven gen
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请英语高手帮我看看这个句子But tumors also have their own genetic signature ——four to seven genetic changes that are critical to turning ,say ,a normal breast or colon or liver cell into a cancerous one这个句子中four to seven gen
请英语高手帮我看看这个句子
But tumors also have their own genetic signature ——four to seven genetic changes that are critical to turning ,say ,a normal breast or colon or liver cell into a cancerous one
这个句子中four to seven genetic changes that are critical to turning 是不是第一句的插入语?a normal breast or colon or liver cell into a cancerous one是不是第二句的插入语呢?
请英语高手帮我看看这个句子But tumors also have their own genetic signature ——four to seven genetic changes that are critical to turning ,say ,a normal breast or colon or liver cell into a cancerous one这个句子中four to seven gen
我觉得这里的插入语是“say,a normal breast or colon or liver cell ” 这个部分.这其实是个例子:一个正常的胸部或直肠或肝脏细胞.如果去掉插入的部分,那么就是turning into a cancerous one.破折号后面的是用来说明肿瘤的标志(tumors' genetic signature)是什么.
我帮你断个句:But tumors also have their own genetic signature.This signature is whether there are four to seven genetic changes.These changes are critical for a cell to turning into a cancerous cell.For example,a normal breast or colon or liver cell turns into a cancerous one.
所以这句话的意思就是:但是肿瘤有他们自己的基因标志,这个标志就是4-7个基因变化,这个变化对转变成癌细胞这个过程至关重要.
也就是说,有没有这个4-7个基因变化是判断正常细胞会不会变成癌细胞的重要标志
希望我说明白了~
书上可能印错了, 反正 这个 肯定不对。 1个句子里 不能出现2个这样的动词 应该改成ing,我问老师了
是
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