many people appear perpetually somber and heavy-hearted
许多人因此显得长期忧郁和心情沉重。
该句使用形容词短语结构描绘人物情绪状态。
"Her mood instantly darkened, and she began to weep."
"Sometimes, we feel inexplicably down, not wanting to speak to anyone."
"There are times when an inexplicable melancholy sets in."
"Decadence often stems from a sense of helplessness."
"This cold treatment left Li Yue feeling deeply disheartened."