Correct

不灵

/ bùlíng /
Strokes

Definition

not work/be ineffective

Example

As a Verb

be out of order; ineffective

1
Zhè
ànjiàn
按键
líng
不灵
le
  

This key doesn't work well.

2
Tīngjué
听觉
líng

be hard/slow of hearing

3
Shǒujiǎo
手脚
líng
不灵

have trouble/difficulty moving about