最重要的是，他不仅向人们展示了如何把所有的这些要素整合成一个有利可图的生意，而且还在曼哈顿下城区这个精心选定的区域市场内证明了它的商业生存能力。

Most important, he showed how all those elements could be combined into a profitable business and demonstrated its commercial viability in the carefully circumscribed market of Lower Manhattan.

youdao