Booking the flight early was a smart decision because prices doubled the following week.

提早訂機票是個聰明的決定，因為隔週票價就漲了一倍。

Our manager made a smart choice by hiring a bilingual assistant for the Tokyo office.

我們經理為東京辦公室聘請一位雙語助理，是個明智的選擇。

The courier found a smart way to avoid traffic and delivered the package on time.

快遞員想到一個機靈的辦法避開塞車，準時送達了包裹。