Correct

了无

/ le wú /
Strokes

Example

As a Verb

be not at all; be not in the least

1
jiā
离家
shǔ
nián
  
,
zhìjīn
至今
le
yīnxìn
音信
  

He left home several years ago and we have never heard from him ever since.

2
Le
zhǎngjìn
长进

make no progress at all

3
Le
juàn
倦意

be not at all tired

4
Le
hén
痕迹

show no trace (of); without the slightest trace; be traceless