Feel pretty good, feel fit and strong.

感觉很好，感觉健康和强壮。

So he wrote: Want to feel fit and energetic?

“想保持苗条健康而又精力旺盛吗？

When the lad felt fit again the two continued their journey toward the coast, and once more the boy's mind was filled with pleasurable anticipation.

当小伙子恢复健康后，两人继续他们的旅程，朝海岸走去，男孩的心中又一次充满了愉快的期待。