His muscles were slowly wasting away because of his illness.因为得了这种病，他的肌肉慢慢萎缩了。He is wasting away from disease.他因病消瘦不少。The old man's strength was wasting away.老人的体力正在衰退。He is wasting away to skin and bone for lack of food.因为吃不饱他已瘦得皮包骨头。He is wasting away from the disease.他因病逐渐消瘦。