Ithasbeenestimatedthatifthebridgewerepackedwithcars,itwouldstillonlybecarryingathirdofitstotalcapacity.文中becarrying可否改为carry,为什么?

Question

It has been estimated that if the bridge were packed with cars,it would still only be carrying a third of its total capacity.
文中be carrying可否改为carry,为什么?

Answer 1

如果这座桥被汽车挤满,估计它仍然只能承受它极限载重的三分之一.
我认为此处强调的是进行时,就是指汽车挤满桥梁的这个情况正在发生的时候.
现在时一般用在普遍发生的事情上,不包括特殊情况,所以用进行时比较好一点,用现在时也不应算错.