And for the first block along the street he walked very stiff and straight and awkwardly, until he forgot himself in his thoughts, whereupon his rolling gait gracefully returned to him.

走在第一段街道上时他把背挺得笔直，僵硬，不自然，然后由于想着心事，忘掉了姿势，他那摇摇摆摆的步子又美妙地回来了。