It occurred to him that this boy was learning to fly—or rather to walk.
他突然想到，这个男孩正在学飞——或者说，是学走路。
Far from violating the laws of motion, animals exploit them to their advantage as they walk, run, dodge and jink, leap and fly, pounce on prey or spring to safety.
非但没有违反惯性定律，动物们在行走、奔跑、躲闪、跳跃、飞行、捕食或逃生中，将惯性定律的优势充分发挥。
With a handheld controller, they can walk through buildings, rotate artifacts, or rise above the model for a bird 's-eye fly-through.
拿着手持式控制器，他们可穿过建筑物，拨动文物，或者以鸟瞰方式纵观整个模型。
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