17.No wonder then, that I watched the progress of these animal mountaineers with keen sympathy, and exulted in the boundless sufficiency of wild nature displayed in their invention, construction, and keeping.
难怪我怀着强烈的同情心注视着这些动物登山者的进步,并为他们在发明、建造和饲养中所展现的野性的无限丰富而欣喜若狂。机翻