s. completely happy and contented
a. 充满喜悦的
1. The couple spent a blissful week on the beach.
这对夫妇在海滩上度过了一个幸福的星期。
2. She felt blissful when she received the good news.
当她收到好消息时，她感到非常幸福。
3. A blissful moment with friends can make any day better.
和朋友们度过的幸福时刻可以让任何一天变得更美好。