1. "How lighthearted I feel," said the father, "so pleased and cheerful." “我感到非常高兴，”父亲说，“非常高兴和愉快。”
2. Not only because it's sung in a deep register, but also because it's a song about deeper or serious matters, certainly not lighthearted. 不仅因为这首歌唱得深沉，还因为这首歌是关于更深刻或更严肃的事情的，当然不是轻松的。
3. When the internal message is lighthearted and relatively unimportant, humor in a memorandum can distinguish its author as a person with personality and depth. 当内部信息是轻松的、相对不重要的时候，备忘录中的幽默可以展现作者的个性和深度。
4. Try making some lighthearted plans. 那就试着制定一些轻松的计划吧。
5. But the lighthearted drama would end in tragedy. 但是这场轻松欢快的戏却以悲剧告终。
