a chemical that is added to the water in the cooling system of cars and other vehicles to stop it from freezing 防冻剂,抗凝剂(加入车辆散热器的水中以防冻结) Lack of antifreeze is a major cause of highway breakdowns. 缺乏防冻剂是公路故障的主要原因。 Check the antifreeze to make sure there is enough in the system. 检查防冻液,确保系统中有足够的防冻液。