At the ecological pool, a fourth-grader counts off the aquatic vegetation he knows for his visitors: scouring rush, soft rush, white lotus, water hissop, chameleon, umbrella sedge, Indian lotus, water lettuce, oriental cattail .... Once he's finished, he turns around and asks, "How many do you know?"
生態池邊，一位 4 年級小朋友為訪客細數他所看到的水生植物：木賊（又稱接骨草）、燈心草、睡蓮、過長沙（白豬母菜）、魚腥草、輪傘莎草、荷花、大萍（水芙蓉）、水蠟燭（香蒲草）… …，說完還促狹地回頭考問訪客：「你認得幾個？」