The debate here is especially wonderful. To sum up, firsly, parallelism is needed here, no matter on Verb. usage(comes from & derives from) and the total structure of the sentence. Secondly, the logic here requires that "account for" should be substituted by "cones from" or "derives from" Last but not least, as for modifier pro, maybe the explanation provided on the 61st floor makes sense.
[此贴子已经被作者于2006-8-25 0:34:30编辑过] |