insurance
名词复数：insurances
同义词：
反义词：
词义辨析：
同义:
n.安全保障, 保险, 保险业
surety
security
indemnity
guaranty
guarantee
warranty
warrant
bond
assurance
pledge
backing
n.警告, 远见, 警惕
precaution
foresight
forethought
providence
provision
safeguard
preventive measure
protection