proportionalKK [prəˈpɔrʃənəl] ｜ /prəˈpɔrʃənəl/
GEPT 中高級
C1adjective
Two amounts are proportional when they change at the same rate, so that the relationship between them remains the same.
For example, if you are making a recipe and you need to double the amount of ingredients, the quantities of the ingredients and the final result should still be proportional.
成比例的；等比的
C1adjective
Two amounts are directly proportional when one increases, the other increases, and when one decreases, the other decreases.
The amount of time spent studying and the grades obtained are directly proportional. As the time spent studying increases, the grades also increase, and when less time is dedicated to studying, the grades decrease as well.
正比的；同向變化的
C1adjective
Two amounts are inversely proportional when one increases, the other decreases, and when one decreases, the other increases.
An example of two amounts being inversely proportional is the relationship between the speed of a vehicle and the time it takes to reach a destination. As the speed increases, the time it takes to reach the destination decreases, and vice versa. For example, if you double the speed of the vehicle, the time it takes to reach the destination is halved.