the stumbling block is stepping-stone
绊脚石是垫脚石
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The stumbling block is stepping-stone.
绊脚石乃是进身之阶。
youdao
Difficulty is a stone, it is a stumbling block to the weak, it is a stepping stone for the strong.
困难是一块顽石，对于弱者它是绊脚石，对于强者它是垫脚石。 ㆳ。
A stumbling block is not terrible, because it is the stepping stone of your success.
绊脚石并不可怕，因为它是你成功的垫脚石。
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