疾雷不及掩耳 jí léi bù jí yǎn ěr

jí léi bù jí yǎn ěr phrase a bolt of thunder claps there is no time to cover one's ears
Domain: Proverb 谚语 , Subdomain: , Concept:
Notes: When an emergency arises it is too late to prepare (Guoyu '疾雷不及掩耳'; Mathews 1931 '疾雷不及掩耳', p. 64)