1 N-COUNT (尤指事业的)垫脚石,进身之阶 You can describe a job or event as a stepping stone when it helps you to make progress, especially in your career. (尤指事业的)垫脚石,进身之阶
2 N-COUNT [usually plural] (小溪或小河中的)垫脚石,踏脚石 Stepping stones are a line of large stones which you can walk on in order to cross a shallow stream or river. (小溪或小河中的)垫脚石,踏脚石