一个专注的年轻人在明亮的白色背景下骑着一辆静止的自行车进行训练。 A focused young man is training on a stationary bike against a bright white background.

这位专注的年轻黑人骑着一辆静止的自行车，在明亮的白色环境中，他的决心散发着光芒。

The focused young black man diligently pedals away on a stationary bike, his determination radiating against the backdrop of a brilliantly illuminated white environment.