zero ·number (TEMPERATURE)
Definition: the temperature that is 32 degrees lower than the temperature at which water freezes in degrees Fahrenheit, or the temperature at which water freezes in degrees centigrade Level: B1
冬天，温度可能降到零下15度。
In the winter, the temperature can drop to 15 degrees below ___zero.
我们必须认识到，狮子生活在冬天温度可能降到零度以下的国家是不自然的。
We have to learn that it is not natural for a lion to live in a country where, in winter, the temperature can fall below ___zero.
水在零摄氏度时结冰。
Water freezes at ___zero degrees Celsius.