We need to find the optimal shipping route to cut delivery costs this quarter.

我們需要找出最佳的運送路線，以降低本季的配送成本。

The consultant recommended an optimal staffing level for the new customer service center.

顧問為新的客服中心建議了最適當的人力配置。

Please book flights at optimal times so the team arrives before the client meeting.

請預訂最合適時段的航班，讓團隊能在客戶會議前抵達。