悦

例句：

1. 1. I alwaysfeel happy when I see my friends.
   每次看到我的朋友，我都会很开心。
2. 2.The music was so pleasant that it made me forget all my worries.
   那音乐如此悦耳，让我忘记了所有的烦恼。
3. 3. She is very pleased with the result of her experiment.
   她对实验的结果非常满意。