At the same time, two arms curving slightly, swinging forward and backward rhythmically like walking.

同时，双臂略弯曲，像走路一样有节奏地前后摆动。

youdao

At the same time, two arms curving slightly, swinging forward and backward rhythmically like walking.

同时，双臂略弯曲，像走路一样有节奏地前后摆动。

youdao