必须指出

• I must point out that it ' s unreality to make no mistake
  我必须指出不犯错误是不现实的。
• I must point out that non - mistake making is unpracticle
  我必须指出不犯错误是不现实的。
• I must point out that it is imposible to make no mistake
  我必须指出不犯错误是不现实的。
• I must point out that making no mistakes is unpractical
  我必须指出不犯错误是不现实的。
• I must point out it ' s unrealistic never make any mistake
  我必须指出不犯错误是不现实的。
• I must point out that is not realized without any mistake
  我必须指出不犯错误是不现实的。
• I must point out that it is impossible to make no mistake
  我必须指出不犯错误是不现实的。
• We must point out that it is not realistic of no mistakes
  我必须指出不犯错误是不现实的。
• I have to point out that making no mistakes is impossible
  我必须指出不犯错误是不现实的。
• It must be noted that learning must be done by a person himself
  必须指出学习只能靠自己。