快乐地

例句：

1. 1. She laughed happily at thejoke.
   她开心地笑了。
2. 2. Hedanced joyouslyto the music.
   他欢快地随着音乐跳舞。
3. 3. They enjoyed their timetogether, laughing and smiling.
   他们在一起时很开心，笑着笑着就笑了起来。