opportunity什么意思

lost no opportunity什么意思? opportunity We would like to take this opportunity to congratu什么意思 In the middle of diffficulty lies opportunity什么意思?知道的说一下,感激不 opportunity cost在经济学中的意思? jump up the opportunity 意思是 chance和opportunity有什么区别? trade off和opportunity有什么区别 求翻译：Opportunity knocks but once．啥意思呢 seize the opportunity or you will regret...啥意思? there is no certainty ,only opportunity的意思 opportunity是什么意思