Harry was unable to understand the boy's passion for mechanical objects in preference to living creatures.哈里无法理解的是，那男孩对机械物体的热爱竟胜过了活生生的动物。All living creatures need food.所有的生物都需要食物。Most living creatures are capable of adaptation when compelled to do so.大多数生物在被逼无奈时总能做出适应性变化。Few living creatures can survive without water.离开了水，几乎任何生物都无法生存。