yán / jiū / rén / yuán / tōng / guò / fēn / xī / dà / liàng / shù / jù / chōu / sī / bō / jiǎn / de / zhǎo / chū / le / wèn / tí / de / gēn / yuán

研究人员通过分析大量数据，抽丝剥茧地找出了问题的根源。

By analyzing a large amount of data, the researchers carefully traced the problem to its root cause.