Correct
神速
/ shénsù /
Strokes
Definition
lightning speed/amazingly rapid/incredible pace of development
Example
As an Adjective
marvellously quick; with amazing speed
1
Shōuxiào
收效
shénsù
神速
obtain instant results; yield marvellously quick results
2
Jìnzhǎn
进展
shénsù
神速
make speedy progress