例句 /

It is inexcusable that Europe has failed to overhaul its system, which is supplied by a ridiculous 34 different providers organised largely around national boundaries.

It is inexcusable that Europe has failed to overhaul its system, which is supplied by a ridiculous 34 different providers organised largely around national boundaries.

美国只有一个供应商,但是它的系统的早在1950年就已经开成了。