yán / jiū / rén / yuán / huā / le / jǐ / gè / yuè / pī / shā / jiǎn / jīn / zhōng / yú / zhěng / lǐ / chū / yí / fèn / kě / kào / de / bào / gào

研究人员花了几个月披沙拣金，终于整理出一份可靠的报告。

The researchers spent months sorting through the material and finally compiled a reliable report.