疏于防范 shūyúfángfàn to fail to take precautions Definitions Defs Origin Strokes Stroke Words Sentences Sents 疏于 疏於 shūyú verb to be negligent in To be careless or fail to pay sufficient attention to a particular matter or situation.防范 防範 fángfàn to guard against to be on guard; to keep a lookout or take preventive measures; wariness
