tā / shè / jì / de / pái / cuò / bù / zhòu / lǚ / shì / bù / shuǎng / hěn / kuài / jiù / zhǎo / dào / le / wèn / tí

他设计的排错步骤屡试不爽，很快就找到了问题。

His troubleshooting steps have repeatedly worked, and he quickly found the problem.