C1 the relationship between two groups or amounts that expresses how much bigger one is than the other比;比例;比率
More examples
Compute the ratio of the object's height to its weight.
What is the car's power to weight ratio?
The staff to student ratio has increased dramatically in the last five years.
The efficiency of a machine is the ratio between the energy it supplies and the energy put into it.
Pi is the ratio of a circle's circumference to its diameter.
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