一名身穿衬衫、肌肉发达的男子在健身时单手举起一个俄罗斯哑铃 A shirtles muscular man on his fitness routine lifts a Russian dumbell with one hand

一个赤膊上阵、肌肉发达的男人，全神贯注于他的健身计划，用一只手举起一个沉重的俄罗斯哑铃。他清晰的肌肉和高度的专注力突显了他对力量训练和身体健康的奉献精神。

A shirtless, muscular man, deeply focused on his fitness routine, lifts a heavy Russian dumbbell with one hand. His defined muscles and intense concentration highlight his dedication to strength training and physical fitness.