nà / míng / huán / bǎo / dòu / shì / dài / lǐng / zhì / yuàn / zhě / qīng / lǐ / le / hé / biān / de / lā / jī

那名环保斗士带领志愿者清理了河边的垃圾。

That environmental activist led volunteers in cleaning up the trash along the river.