The finance department must approve all requests before staff purchase new office equipment.

員工購買新的辦公設備前，所有申請都必須經過財務部核准。

Customers who purchase two or more items online will receive free shipping this month.

本月在網路上購買兩件以上商品的顧客，可享免運費。

We purchased our flight tickets early to take advantage of the lower fares.

我們提早購買機票，好享有較低的票價。