Charles Babbage is generally considered to have invented the first computer.

问题描述:

Charles Babbage is generally considered to have invented the first computer.
这句话中的considered解释为什么?为什么用to have invented?

被认为.
因为已经发明了,是完成时,所以用have invented
be considered to do表示被认为……
consider doing是考虑做某件事