Her email captured the pith of the client's complaint in just three sentences.

她的電子郵件只用三句話就抓住了客戶抱怨的核心。

During the meeting, the director skipped the details and went straight to the pith.

會議中，處長跳過細節，直接切入重點核心。

The pith of the new shipping policy is faster delivery for regional customers.

新運送政策的精髓在於為區域客戶提供更快速的配送。