词汇：optimal

adj. 最理想的；最佳的

相关场景

3. Dark, Quiet and Cool.
These three factors are your best bet for creating an optimal sleeping environment. Make sure your bedding and clothing are comfortable, and if you have trouble achieving any of these conditions, consider blackout curtains, ear plugs, eye shades, humidifiers, “white noise” or fans.

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Guys, I'm running the numbers, and even with optimal VAL blow... we're gonna be off on our angle.

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