proportionalKK [prəˋpɔrʃənəl] /pɹəˈpɔɹʃənəl/发音形容词1成比例的、相称的The fine is proportional to the driver's monthly income.罚金的金额与驾驶人的月收入成比例。2按比例的、比例制的The country elects its lawmakers under a proportional voting system.该国以比例代表制选出国会议员。3成正比的数学Pressure is directly proportional to temperature in a sealed container.在密闭容器中,压力与温度成正比。用这个字练口说→