"遊泳和田徑選手可能放慢自己的節奏。網球明星在比分落後時可能放棄一局，以節省體力。"

來源: savagewi 於 2012-08-02 14:57:17 [舊帖] [給我悄悄話] 本文已被閱讀：次

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