to sigh over moral decline
他的诗文多为感世之作。
Much of his poetry deals with the decline of public morals.
汉译英翻译词典收录86165条汉英翻译词条，基本涵盖了全部常用中文字词的英语拼写、翻译、音标、读音、用法、例句等，是英语学习的有利工具。