Fix grammar in the sentence: Due to the number of words limited, this essay only scratches the surface of what leads to the invention and diffusion of the refrigerator, and picks out the three most obvious factors to discuss.
The refrigerator is a device that is used to keep food cold.
The refrigerator is a device that is used to keep food cold.
The refrigerator is a device that is used to keep food cold.
The refrigerator is a device that is used to keep food cold.
The refrigerator is a device that is used to keep food cold.
The refrigerator is a device that is used to keep food cold.
The refrigerator is a device that is used to keep food cold.
The refrigerator
The invention of the refrigerator was a result of the invention of the refrigerator.
The invention of the refrigerator was a result of the invention of the refrigerator.
The invention of the refrigerator was a result of the invention of the refrigerator.
The invention of the refrigerator was a result of the invention of the refrigerator.
The invention of the refrigerator was a result of the invention of the refrigerator.
The invention of the refrigerator was a result of the invention of the refrigerator.
The invention of the