This is the 6330th most frequent Chinese word.
憔悴
Haggard; worn-out; emaciated.
憔悴 is used here to describe a physical state of extreme tiredness and exhaustion due to overworking.
他因为每天努力工作而变得很憔悴。
He became very haggard due to working hard every day.
憔悴 in this context signifies a visible decline in physical appearance, primarily caused by illness.
经过长时间疾病的折磨，她的面容变得憔悴不堪。
After suffering from a prolonged illness, her face became very haggard.
憔悴 refers to the emotional strain reflecting on one's physical appearance due to stress.