一个明显疲惫的年轻黑人在白色背景下骑着固定自行车锻炼 A visibly tired young black man exercising on a stationary bike over a white backdrop

一名明显疲惫的年轻黑人男子穿着运动服，在白色背景下骑着固定自行车认真地进行严格的锻炼。

A visibly tired young black man, clad in workout attire, is earnestly engaging in a rigorous exercise routine on a stationary bike over a white backdrop.