1.If you are not sure,then do not make a promise so easily because every promise is pale when faced with time.
2.Unless you stop trying,or you won't be a loser.
英语翻译在你没有把握的时候 就不要做出承诺 因为在时间面前 任何承诺都是苍白的 将上面的话翻译成英文除非你停止尝试，否则
1.If you are not sure,then do not make a promise so easily because every promise is pale when faced with time.
2.Unless you stop trying,or you won't be a loser.