求大神分析下英语句子It is taken as a sign of skillfulness or being competent to solve a problem,or fulfill a job successfully,with speed.中间着重分析it is taken as a sign of的用法和结构成分.为什么fulfill是原型而不是动名词形式.with前面为什么有逗号,能否去掉,with speed作为什么成分存在着.
问题描述：
求大神分析下英语句子
It is taken as a sign of skillfulness or being competent to solve a problem,or fulfill a job successfully,with speed.
中间着重分析it is taken as a sign of的用法和结构成分.
为什么fulfill是原型而不是动名词形式.
with前面为什么有逗号,能否去掉,with speed作为什么成分存在着.
答