happy feelings的用法和样例：
例句
- That is why the kissing partners can experience feelings of euphoria and bliss in the process.
这也就是为什么在接吻的时候，人们会有种轻飘飘的幸福感。 - This can lead to feelings such as depression, low self-esteem, anxiety, and rapid mood swings between depression and euphoria.
这种情况会引起其他的感受例如失落感，自尊心受挫，烦躁以及在幸福感及失落感之间徘徊的一种心境。
