Think of them as a tightrope walker's balancing pole.
把他们想象成走钢丝者的平衡杆。
2
The sport's rules require that a race walker's knees stay straight through most of the leg swing and one foot remain in contact with the ground at all times.
这项运动的规则要求竞走运动员的膝盖在大部分的腿部摆动过程中保持笔直，一只脚始终与地面保持接触。
3
Despite winning several prestigious literary awards of the day, when it first appeared, Alice Walker's The Color Purple generated critical unease over puzzling aspects of its compositions.