An optimist sees an opportunity in every calamity ,a pessimist a calamity in every opportunity .
An optimist sees an opportunity in every calamity ,a pessimist a calamity in every opportunity .
乐观者在每场灾难中都能看到希望，悲观者在每次希望中看到灾难。
An optimist sees an opportunity in every calamity ,a pessimist a calamity in every opportunity .
乐观者在每场灾难中都能看到希望，悲观者在每次希望中看到灾难。