温度整天都在冰点以下。
The temperature remained below freezing all day.
今夜的温度将降至冰点下3度。
Tonight the temperature will fall to 3 degrees below freezing.
气温大大低于冰点时最好是呆在室内，除非你迫于生计而不得不外出。
It's best to keep in while the temperature is so for below freezing point, unless you have to go out to earn your living.
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
A substance, often a liquid such as ethylene glycol or alcohol, mixed with another liquid to lower its freezing point.
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