amelioration的反义词

One of the most startling proposals for amelioration, in fact, came from Wall Street.实际上, 最令人注意的改良建议之一出自华尔街.I've heard that Liebig has made some wonderful discoveries in the amelioration of soils.我听人说利比黑在改善土壤这方面有过很了...

n.改善，改进...

amelioration的音标：amelioration的英式发音音标为：[əˌmi:lɪə'reɪʃn]amelioration的美式发音音标为：[əˌmiljə'reʃən]...