arm swing

例句：

1. 1. The dancer's arm swing was so graceful that it made the audience gasp.
   舞者的手臂摆动如此优雅，让观众惊叹不已。
2. 2. The old man's arm swing was slow and deliberate, as if he were reminiscing about his past.
   老人的手臂摆动缓慢而从容，仿佛在回忆过去的时光。
3. 3. As she walked down the street, her arm swinging gracefully, she seemed to be in a dreamland.
   她沿着街道散步时，手臂优雅地摆动，仿佛置身于梦境之中。