The quarterly report showed a sharp decrease in shipping costs after we switched carriers.

季報顯示，我們更換貨運業者後，運費大幅減少。

Management noticed a steady decrease in customer complaints since the new hotline opened.

自從新的客服專線開通後，管理階層注意到客訴持續下降。

Due to a decrease in demand, the airline canceled several weekday flights to Osaka.

由於需求減少，該航空公司取消了數班平日飛往大阪的航班。