a sudden happening that brings good fortune (as a sudden opportunity to make money)
同义词：boom??/??bonanza??/??gold rush??/??gravy??/??godsend??/??manna from heaven??/??windfall
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。