What's underneath the ice?
Is it ice, or something colder than ice?
The growth limit of adult cold-water fish is between zero degrees Celsius and thirty degrees Celsius. After the natural waters are frozen in winter, the water temperature under the ice is about five degrees Celsius. At this temperature, fish do not eat and have low oxygen consumption, so they can still survive.
One day when you were about to die, you broke the ice and wanted to die together, but you touched the softest heart.
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