[] the best; the number, size, etc. that will produce the best possible results 最佳的；最适宜的◆The optimum temperature setting for the machine is 70°C. 机器的最佳温度设定为摄氏 70 度。◆What is the optimum team size? 最佳的团队规模是多大？➡optimal ⨁the optimum level / price / range / size / temperature 最佳水平／价格／范围／规模／温度