然而,畸形儿病例大量发生的原因不得而知.And still the cause of the phocomelia outbreak remained unknown.近亲婚配家族生育子女仍是出现遗传病和先天畸形儿的主要原因之一.Near relative wedding was still one of the main reasons tance disease and congenital monstrosity infants....
Issues such as these were not really his concern.他其实并不关心诸如此类的问题。A good relationship involves concern and sensitivity for each other's feelings.一段美满的恋情需要彼此关心并体恤对方的情感。The technical aspects were the concern of the Army...