저번에 아주 불꽃 튀게 해석을 해주셨던 문장

그게 그거 하나 뿐이라서 의견이 분분한것으로 여겨져 앞문장도 포함해서 다시 올립니다.

잘 부탁드립니다.
while the metric system is recognized by law as the preferred system for trade and commerce, the American public has refused to adopt it. How can it be that the most industrialized country in the world has not yet converted to this much more elegant and accurate system?