不是基礎,是必要條件,有了未必幸福,沒有肯定不幸福
所有跟帖:
• 幸福的必要條件是經濟要好,充分條件是感情要好,明白了 -木頭一塊- ♂ (0 bytes) () 07/01/2009 postreply 05:06:19
• 幸福的必要條件是經濟要好,充分條件是感情要好,明白了 -木頭一塊- ♂ (0 bytes) () 07/01/2009 postreply 05:06:19
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