During the board meeting, the CFO expounded on the reasons behind the quarterly revenue decline.

在董事會議上，財務長詳細說明了季營收下滑的原因。

Could you expound on the new shipping policy in your next email to the warehouse team?

可以請你在下一封寄給倉儲團隊的電子郵件中，詳細說明新的出貨政策嗎？

The interviewer asked the candidate to expound on her experience managing international client accounts.

面試官請應徵者詳細闡述她管理國際客戶帳戶的經驗。