Correct

向下兼容

/ xiàngxià jiānróng / 
Strokes

Example

As an Adverb

downwards; down

1
Xiàng
向
xià
下
de
的
yùndòng
运动
  
/
yālì
压力

downward movement/pressure

2
Xiàng
向
xiàhuá
下滑
  
/
kàn  
看/
pánxuán
盘旋

slide/look/spiral downwards