Correct

不灵

/ bùlíng / 
Strokes

Definition

not work/be ineffective

Example

As a Verb

be out of order; ineffective

1
Zhè
这
ànjiàn
按键
bùlíng
不灵
le
了
  
。

This key doesn't work well.

2
Tīngjué
听觉
bù
不
líng
灵

be hard/slow of hearing

3
Shǒujiǎo
手脚
bùlíng
不灵

have trouble/difficulty moving about