1879, from Latin optimum, neuter singular of optimus "best" (used as a superlative of bonus "good"), probably related to ops "power, resources" (in which case the evolution is from "richest" to "the most esteemed," thus from PIE root *op- "to work") or to ob "in front of," with superlative suffix *-tumos. Originally in biology, in reference to "conditions most favorable" (for growth, etc.). As an adjective from 1885.
实用例句
1. the optimum use of resources
对资源的充分利用
来自《权威词典》
2. Do you know the optimum temperature for the growth of plants?
你知道庄稼生长的最佳温度 吗 ?
来自《简明英汉词典》
3. Now your advice is very optimum.
现在你的建议是很适宜的.
来自《简明英汉词典》
4. Aim to do some physical activity three times a week for optimum health.