“虧本”在英文中可以翻譯為：

1. **Lose money** (最常用)
- 例句：If we sell at this price, we will lose money. (如果我們按這個價格賣，我們會虧本。)

2. **Sell at a loss** (特指虧本銷售)
- 例句：They had to sell at a loss to clear the inventory. (他們不得不虧本銷售來清庫存。)

3. **Sustain losses** (強調承受損失)
- 例句：The company sustained heavy losses this quarter. (公司本季度虧本嚴重。)

4. **Run at a loss** (企業/項目持續虧損)
- 例句：The branch has been running at a loss for years. (該分店多年來一直虧本經營。)

根據具體語境選擇合適的表達即可。