for example, until the passage of the 16th amendment congress could not directly tax the people of the united states unless it was proportioned to the population of each state.
例如,在第16条修正案通过以前,国会不能直接象美国人民征税,除非按照各州的人口比例分摊。
001 was widely used in food industry, but could not directly digest the soybean cake powder, a cheap industrial raw material with high content of proteins.
豆饼粉是一种廉价的富含蛋白质的工业原料,直接用作氮源不能被轮枝链霉菌利用。
the world might as well not have existed for him, as he could not directly experience anything outside of his hometown.
世界也许同样并不因他而存在,因为他不想亲身经历那些发生在家乡之外的任何事情。