大错误没有犯， 小错误没有断， 因为我们没有经验。 A. We haven’t made any major mistakes, we have made minor ones, because we have no experience. B. Since we haven’t made any major mistakes, we have made many minor ones, because we have no experience. C. As we haven’t made any major mistakes, we have made many minor ones, because we have no experience. D. Although we haven’t made any major mistakes, we have made many minor ones, because we have no experience.