Our team traced the source of the shipping delay to a customs error in Singapore.

我們團隊追查出運送延誤的源頭是新加坡的一個海關錯誤。

Please cite the source of these sales figures before the report goes to the board.

報告送交董事會前，請註明這些銷售數字的來源。

The hiring manager said employee referrals remain our best source of qualified candidates.

招募經理說，員工推薦仍是我們合格人選的最佳來源。