Consequently, children of a particular age cannot be expected to master educational material without taking into account their current level of cognitive development.
因此，如果不考虑特定年龄段的孩子们目前的认知发展水平，就不能期待他们能够掌握教材。
2
This is crucial, because it implies a high level of cognitive development.
这是至关重要的，因为它意味着高层次的认知发展。
3
In a new experiment, she used ct scans to examine brains of monolinguals and bilinguals with dementia. All the subjects were the same age and functioned at the same cognitivelevel.