疏于防范 Traditional 疏於防範 shū yú fáng fàn 🔊 to neglect to take precautions + Keep this word Meanings shū yú fáng fàn 疏於防範 to neglect to take precautionsrelaxed vigilance Its characters 疏shūto dredge于yúin; at; onHSK 6防fángto protectHSK 5范fànpattern