In sum, the new shipping policy should cut our delivery times by two days.

總而言之，新的運送政策應能將我們的交貨時間縮短兩天。

The sum of her report was that customer complaints mostly involve slow refunds.

她報告的核心重點是，顧客抱怨大多與退款太慢有關。

To put it in sum, the candidate's experience fits the sales manager role perfectly.

簡而言之，這位應徵者的經歷非常符合業務經理一職。