Thanks to careful planning, the transition to the new billing system was remarkably smooth.

多虧了周詳的規劃，轉換到新計費系統的過程相當順暢。

The flight was smooth, so I finished reviewing the sales report before landing.

這趟飛行很平穩，所以我在降落前就看完了銷售報告。

Our logistics team ensures a smooth handover of every shipment at the port.

我們的物流團隊確保每批貨物在港口都能順利交接。