A walk in the fresh air will pep you up.

在清新空气中散散步会使你精神振奋。

Note how these animals sometimes walk with their tails up in the air.

注意观察这些动物有时如何翘起尾巴走路。

I go out of my way to walk by the building, listening for sounds, smelling the air for rot.

我在那座建筑物附近走来走去，听听动静，嗅嗅空气中有没有传来腐烂的气息。

Get off a stop earlier, make a circuit of the park at lunchtime, walk the child to and from school, get a dog, feel yourself moving in moving air, look, listen, absorb.

提前一站下车，午餐时间去公园转一圈，带孩子上下学，养条狗，感受自己在流动的空气中移动，观察，倾听，吸收。

No one can walk the wire in the air without a bit of fear unless trained very young.

没有人能在空中毫无畏惧地走钢丝，除非从小就接受过训练。