Optimality
[计] 最佳性
🗣️ 情景例句
Where do I board my plane?
我在那儿登机？
What number should I dial to get the operator?
我应该拨什么号码找到接线员？
The opinion does not survive experience of a popular Continental camping place.
但这种说法在受人欢迎的欧洲露营场地是站不住脚的。