downward
	英 ['daʊnwəd]
美['daʊnwɚd]
	    
    英英释意
	
	- 1. on or toward a surface regarded as a base;
 - "he lay face downward"
 - "the downward pull of gravity"
 
- 2. extending or moving from a higher to a lower place;
 - "the down staircase"
 - "the downward course of the stream"