一个女人'；在固定自行车上训练时，他的脸上露出了努力的迹象 A woman's face shows signs of effort while training on the stationary bike

一个女人'；当她在黑色背景下骑着静止的自行车大力训练时，她的脸上明显流露出坚定努力的迹象。

A woman's face bears the unmistakable signs of determined effort as she vigorously trains on the stationary bike over a black background.