a liquid added to the water in a cooling system to lower its freezing point
antifreeze详细解释
an.ti.freeze n.（名词）A substance, often a liquid such as ethylene glycol or alcohol, mixed with another liquid to lower its freezing point.防冻剂，防冻液，抗凝剂：一种物质，通常是液体，如乙二醇或酒精，和另一种液体混合来降低冰点
