英英釋義：the best or most suitable for a particular purpose or in a particular situation.
有時它還可以拼寫作 optimum擎厢，意思和用法不變爷辱。一般 optimal 可以用來形容時機雷猪、條件、解決方案酣栈、結果等诉稍，常可以替換 best 和 ideal。
sentence
1.?雖然有的英國大學錄取要求是雅思 6.5 分米同，但 7.5 分更容易被錄取
Although some British universities require a minimum IELTS score of 6.5 for admission, 7.5 would be?optimal?for those who want to have an edge.
2.?有些戶型不是方方正正的，實用面積有限摔竿，如果室內設計巧妙面粮，充分利用了空間，我們就可以說：
This interior design makes the?optimal?use of the available space.
3.?最優(yōu)的解決方案應該是用最少的預算和時間完成項目
The?optimal?solution is to use as little budget and time as possible to get the project done.?
4.?A carbon price is indeed the?optimal?way to reduce pollution, but getting people to pay for carbon has been a vote-loser in America and Europe.?
5.?They compute an?optimal?tax rate of 1-2 cents per ounce of soft drink in America. Taking this into account they reckon that the optimal rate for cities is 0.5 cents, although a more efficient system would be a state or national tax to control America’s sugar rush.?
practice
翻譯下面的句子： 一些應用更多關心的是最佳用戶體驗继低，而不是不顧一切的增長熬苍。
Some apps care more about optimal user experience, not just increase in the number of users.
參考翻譯：Some apps are more concerned about ensuring optimal user experience than pursuing relentless growth.
