Correct
迅雷不及掩耳
/ xùnléi bùjí yǎněr /
Strokes
Example
Definition
a sudden peal of thunder leaves no time for covering the ears—as sudden as (a flash of) lightning; with lightning speed
1
Yǐ
以
xùnléibùjíyǎněr
迅雷不及掩耳
zhī
之
shì
势
with the suddenness of a thunderbolt