钩沉
gōuchén
钩沉 — gōuchén
- to excavate or unearth (documents, records, historical facts); to fish out (from archives)
这位史学家花了多年时间钩沉古代文献,发现了许多新的史料。 zhèwèi shǐxuéjiā huā le duōnián shíjiān gōuchén gǔdài wénxiàn fāxiàn le xǔduō xīn de shǐliào — The historian spent many years combing ancient documents and unearthed much new historical material.