无虑的

例句：

1. 1. She felt a sense of peace and contentment that made her feel unburdened.
   她感到一种平静和满足感，让她感觉轻松。
2. 2. The child was so happy that he didn't even notice the rain outside.
   那个孩子如此快乐以至于他甚至没有注意到外面的雨。
3. 3. He lived a life of ease and comfort, completely unburdened by worries or responsibilities.
   他过着无忧无虑的生活，完全不受忧虑或责任的束缚。