Word

HSK	Not in HSK
FREQUENCY	Unknown

疏於防範 shū yú fáng fàn

DEFINITIONS

to neglect to take precautions
relaxed vigilance

CHARACTERS

疏 shū HSK 6	neglect; careless, lax
於 yú	in, at, on; interjection alas!
防 fáng HSK 5	defend; prevent; embankment
範 fàn	pattern, model, rule, law