一只饥饿的苍蝇在北卡罗来纳州的松林间疾速飞行着。这只苍蝇被地面上一丛像花的红色植物散发出来的花蜜香气所吸引,落在了一片红色叶子的肥厚叶垫上。它啜饮了一口从叶子中渗出的甘甜汁液,在叶子表面的一根茸毛上蹭了蹭腿,又在另一根上蹭了蹭。突然,苍蝇的周围竖起了高墙。叶子 A hungry fly flew fast among pine forests in North Carolina. The flies were attracted by the aroma of nectar emanating from a cluster of flowering red plants on the ground, falling onto the plump leaf mats of a red leaf. It sips a sweet juice oozing from the leaves, rubs and rubs on one of the velvet leaves, and rubs it over the other. Suddenly, there was a tall wall around the flies. leaf