由於市场需求下降，这家公司的生意每况愈下。 The company has gone into a decline because of falling demand.
近两年来，他的健康状况每况愈下。 He has suffered from failing health/has been failing in health for the last two years.
我失业了，健康又每况愈下，而我妻子却对我说她要离开，去与我的一个最好的朋友同居时，我更加感到痛苦万分。 I lost my job and my health began to suffer, when my wife put the knife in by saying that she was leaving me to go and live with my best friend.
