The budget forecast is based on the assumption that fuel prices will stay stable.

這份預算預測是基於燃料價格將維持穩定的假設。

Please don't make assumptions about the client's needs before the meeting on Friday.

在週五開會之前,請不要對客戶的需求妄下假設。

Our assumption that the shipment would arrive Monday turned out to be wrong.

我們原本假定貨物會在週一送達,結果證明是錯的。