At that time I was in a bad mood feeling an inexplicable sense of irritability.
那时我心情很糟，感到一种莫名的烦躁。
该句通过连续动词结构描述心理状态的逐步展开。
"When feeling sad, give yourself a smile—it is a sign of grace."
"It is merely an emotion; it comes and goes, and there is no need to suppress it."
"Sensitive people are often unhappy because they care too much"
"Emotions are contagious; they affect not only others but the entire environment"
"Every time you lose your temper, hammer a nail into the backyard fence."