原帖由 NEB 于 2008-1-25 11:25 发表 " K2 _" Q! k( u D3 tyou can have lots of ideas, but you can only keep one idea in your head at any given time.
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that is not true. In fact a person may have several ideas at the same time toward the same issue. For example, a person may have many ideas where to spend the vocation, etc.