On a whim, our manager booked a team lunch at the new Thai restaurant downtown.

我們經理一時興起，在市中心那家新開的泰式餐廳訂了團隊午餐。

Customers who buy on a whim often return items within the first week.

一時衝動購物的顧客，常常在第一週內就退貨。

He changed his flight to Tokyo on a whim after seeing a last-minute discount.

他看到最後一刻的折扣後，心血來潮把班機改飛東京。