yánjiūrényuán / zài / shāndì / xīliú / fùjìn / fāxiàn / le / duōzhǒng / huīdié / bìng / jìlù / le / tāmen / de / huódòng / shíjiān

研究人员在山地溪流附近发现了多种灰蝶，并记录了它们的活动时间。

Researchers found several species of gossamer-winged butterflies near a mountain stream and recorded when they were active.