据芝加哥郊外莫顿植物园一位园艺学家查尔斯·刘易斯研究认为，植物比宠物开始成为更好的治疗专家。他说，那是因为植物“对任何人都不歧视，没威胁。”植物在恶劣的城市环境中提高人们的自尊心是非常有用的。在那些环境里，这种在自我形象中的变革得到了改善。刘易斯指出，许 According to Charles Lewis, a horticulturist at Morton Arboretum in the suburbs of Chicago, plants start to become better therapists than pets. That’s because plants “do not discriminate, no threat to anyone,” he said, adding that plants can be very useful in raising people’s self-esteem in harsh urban environments. In those circumstances, this change in self-image has been improved. Lewis pointed out, Xu