下滑

to slide down (a slope etc) / (fig.) to decline

down / downwards / below / lower / later / next (week etc) / second (of two parts) / to decline / to go down / to arrive at (a decision, conclusion etc) / measure word to show the frequency of an action

surname Hua

to slip; to slide / slippery; smooth / sly; slippery; not to be trusted