英文原文：
Do not be regretful until you have lost
英式音标：
[duː] [nɒt] [biː] regretful [ənˈtɪl] [juː] [hæv] [lɒst]
美式音标：
[du] [nɑt] [bi] regretful [ənˈtɪl] [ju] [hæv] [lɔst]
Do not be regretful until you have lost
do not start to regret only after you lose.
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