All our laptops come with a two-year guarantee covering parts and labor.

我們所有的筆電都附有兩年保固，涵蓋零件與工資。

The supplier offered a written guarantee that the shipment would arrive by Friday.

供應商提供書面保證，承諾貨物會在週五前送達。

Please keep your receipt, as the guarantee is void without proof of purchase.

請保留收據，因為沒有購買證明保固就會失效。