Sales of our older models have been flagging, so marketing plans a new campaign.

我們舊款機型的銷售一直疲軟，所以行銷部計劃推出新的宣傳活動。

After the six-hour meeting, everyone's flagging energy showed in their tired faces.

開了六小時的會後，大家疲憊無力的狀態都寫在疲倦的臉上。

The airline offered free coffee to revive flagging passengers during the long delay.

航班長時間延誤期間，航空公司提供免費咖啡，讓疲憊的乘客提振精神。