Walking round the garden, Li Chien points here and there and names every plant, along with its characteristics and habit; his brain is a map with what plant comes from where clearly mark ed.
走在園內，李堅隨手一指，就能道出每種植物的名字、特徵、習性；對什麼地方種什麼植物，他腦中更有張清楚的地圖。