once you understand this rule,you'll have no further difficuty.这里可以用while或者when代替once 为什么``

once you understand this rule,you'll have no further difficuty.这里可以用while或者when代替once 为什么`` How do you understand the line lf nothing once,you nothing lose? How do you understand Once the sands have run out of a person'shourglass,th once you understand this rule,you'll have no further difficuty.同义句____ ____ ____you understand this rule,you'll have no further difficuty _____ i understand what you say ,i can't agree with you.A.As B.Since C.Once D.While 1.__you understand the rule,you will have no further difficulty. A once B though c until D unles ___you understand the role,you will have no further difficuly.A.Once B.Unless为什么不选A how do you understand:once the sands have run out of one's hourglass,they cannot be replaced. If you know I once was, now I will forgive and understand me now and believe me later的中文 are you understand 还是do you understand ________ you understand the rule,you will have no further difficulty doing it.A.Though B.While C.Once D.Unless _____ you understand the rules of the game,you will enjoy it.A.Before B.Even if C.Once D.While hope you understand what i hope you understand Do you understand me? I understand you better Do you understand Can you understand me