Correct

上台阶

/ shàngtái jiē / 
Strokes

Definition

step up

Example

As a Verb

reach a new level; reach a higher stage of development; make a new round of progress

1
Nóngyè
农业
shēngchǎn
生产
yòu
又
shàng
上
xīn
新
táijiē
台阶
  
。

The agricultural production again rose to a new height.

2
Shàng
上
xīn
新
táijiē
台阶

reach a new level; reach a higher stage of development