can be doing与can do 区别在ietls 真题6考官范文里第168和172页,有以下2个句子I would say that change can be stimulating and energising for individuals.Sitting in front of a screen for too long can be damaging to both the eyes and the

can be doing与can do 区别在ietls 真题6考官范文里第168和172页,有以下2个句子I would say that change can be stimulating and energising for individuals.Sitting in front of a screen for too long can be damaging to both the eyes and the
can be doing与can do 区别
在ietls 真题6考官范文里第168和172页,有以下2个句子
I would say that change can be stimulating and energising for individuals.
Sitting in front of a screen for too long can be damaging to both the eyes and the physical posture of a young child.
为什么要用can be doing 而不是 can do

can be doing与can do 区别在ietls 真题6考官范文里第168和172页,有以下2个句子I would say that change can be stimulating and energising for individuals.Sitting in front of a screen for too long can be damaging to both the eyes and the
看表达需要：can be doing表示的是一种动态,而can do 则是静态.这是其中最大的区别.但两种都是正确的用法,用在本文中完全可以.