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enkyklios 发表于 2013-10-9 11:50
回错了,请见上贴
Ok,明白,还有个问题:
The new image of Stone Age people as systematic hunters of large animals, rather than mere scavengers of meat(“new image of stone age”同位语 ), has emerged from the examination of tools found in Germany, including three wooden spears that archaeologists believe to be about 400,000 years old.
作为连词为什么要逗号隔开呢?
还有这些句子,可能是另外一个问题了:在and之前用comma的意思是什么?是因为句子太长,所以需要逗号隔开,方便读者理解吗?
Whereas the honeybee’s stinger is heavily barbed and cannot be retracted from the skin, the yellow jacket’s stinger is comparatively smooth, and can therefore be pulled out and used again.
Even though many of her colleagues were convinced that genes were relatively simple and static, Brabara McClintock adhered to her own more complicated ideas about how genes might operate, and in 1983,at the age of 81, was awarded a Nobel Prize for her discovery that the genes in corn are capable of moving from one chromosomal site to another |
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