无前例可援的英文

• have no precedent to go by

• 例    example; instance
• 可    approve
• 援    pull by hand; hold
• 你要我做的事有前例可援吗    is there a precedent for what you want me to do
• 通例可援    usages can be quoted
• 无例可援    have no precedent to go by
• 无先例可援    have no precedent to go by
• 有例可援    there is a precedent to quote.; with a precedent for that
• 有先例可援    have a precedent to go by
• 史无前例    there was no parallel in history.; be unprecedented in the nation's history; unprecedented in history; without parallel in history; without precedent in history 史无前例的壮举 an unprecedented feat; 工农红军胜利地完成了史无前例的二万五千里长征。 the workers' and peasants' red army victoriously completed its unprecedented 25,000 li long march
• 史无前例的    u recedented; unprecedented; without precedent in his history; without precedent in history
• 史无前例地    unprecedentedly
• 无前例的    unexampled; unheard-of; unprecedented a. never done or known before
• 史无前例的规模    unprecedented scale
• 史无前例的旅程    epic journey
• 史无前例的壮举    unparalleled feat
• 前所未有的，史无前例的    unprecedented
• 你要我做的事有成例可援吗    is there a precedent for what you want me to do
• 前例    precedent 史无前例 without precedent in history; unprecedented; 无前例可援 have no precedent to go by; 你要我做的事有前例可援吗? is there a precedent for what you want me to do
• 史无前例的长江三峡大坝工程    the unprecedented project：construction of the three－gorges dam on the yangtze river
• 前例,先例    precedent
• 先例，前例    precedent
• 无前提    premise-free
• 无前肢    abrachia
• 不可援救的    irrecoverable