Well,to tell you the truth,I have my doubts about his sincerity. Is he really interested in working for us,or are we a stepping stone to something else? 嗯，说实话，我对他的诚意表示怀疑。他确实对我们的工作感兴趣吗，还是把我们作为其他目的的垫脚石?
If you fail, make failure a stepping stone to success. 如果你失败了,就把失败当作通向成功的垫脚石。
I am sure this promotion is just a stepping stone to even greater things. 我相信你这次晋升,只是未来取得更辉煌成就的开端。
Not just a brag,not just a stepping stone to a higher title,not just an adjunct to competition. 一个较高的称号不仅仅是自夸，也不仅仅是一块垫脚石，更不是参与竞争的附属物。
Delighted to hear your latest promotion.A grand reward for job well done.I m sure this promotion is just a stepping stone to even greater things. 很高兴听说你得到提拔，你出色的工作得到了可观的回报，我相信这次晋升只是你未来更辉煌成就的阶梯而已。
Therefore, use every mistake as a stepping stone to progress; analyze each mistake you make and the cause of every loss, in order to avoid repeating the same error in future. 所以，分析你所犯的每一个错误以及导致你损失的原因，以便使你避免在未来重复同样的错误，并使每一个错误成为你不断进步不断发展的阶石。