Optimality
[计] 最佳性
🗣️ 情景例句
Marilyn, I'm exhausted. I can't move. Marilyn
我太累了。简直动不了。
I'm afraid she's not here.
很抱歉，她不在。
The deepest holes of all are made for oil, and they go down to as much as 25,000 feet.
在所有洞穴中，为寻找石油所钻的洞是最深的，这些洞可深达25，000英尺。