If you don't start eating properly you're going to fade away.你如果不开始合理进食，身体就会衰弱下去。You could see the poor dog weakening daily as the disease spread through its body.随着这种疾病在这条可怜的狗身上扩散，你能看到它在一天天衰弱下去。Those who were convicted were sent to rot in prison.那些判了刑的人被关进监狱，慢慢衰弱下去。