yán / jiū / rén / yuán / guān / chá / dào / qiē / yè / yǐ / huì / yán / zhe / gù / dìng / lù / xiàn / yùn / sòng / yè / piàn

研究人员观察到，切叶蚁会沿着固定路线运送叶片。

Researchers observed that leaf-cutter ants transport leaves along fixed routes.