tā / fā / xiàn / le / zhè / gè / gōng / jù / de / miào / yòng / dà / jiā / dōu / lái / qǐng / jiào / tā

他发现了这个工具的妙用，大家都来请教他。

He discovered the ingenious use of this tool, and everyone came to ask him about it.