踏脚石 stepping-stone
Mitchell: Well, then you should play him.
那你就让他上场。
Cameron: And risk our perfect 3-0 record in my first year as the varsity football coach when this could be a stepping-stone to a college job or who knows what else?
冒着牺牲我们3比0的完美战绩吗？这可是我当橄榄球队教练的第一年，本可以成为我进入大学工作获得事业成功的垫脚石呢。
Many college students use their degrees as a stepping-stone to dream jobs.
许多大学生把学位作为找到理想工作的踏脚石。
(1) stepping-stone “踏脚石，敲门砖，成功的途径，进身之阶”
英语解释为something that helps you to progress towards achieving something。
(2) stepping-stone to/towards sth. “.…..的踏脚石，……的敲门砖”
绊脚石 stumbling block
It's a stumbling block to success.
这是成功路上的绊脚石。
We can turn a stumbling block into a stepping-stone.
我们可以化绊脚石为踏脚石。
(1) stumble “绊脚，绊了一下”
(2) block “大块；街区；障碍物，阻碍”
(3) stumbling block “障碍物，绊脚石”
英语解释为a problem or difficulty that stop you from achieving something。
(4) stumbling block to sth. “.…..的障碍，……的绊脚石”