So it is fully in accord with Maslow's needs theory or Clayton Paul Alderfer's ERG theory, that these three levels of need be coexisted in every person.
以此吻合于马斯洛的需要论或奥德费的ERG理论，三个层次的需要并存于每个人身上。
They are largely identical but with minor differences, for the sake of talking convenience, we tend to adopt Clayton Paul Alderfer's ERG theory.
两者大同小异，为了叙述的方便，我们倾向于奥德费的三种划分。
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