“款空”在中文里通常有兩種常見含義，對應的翻譯如下：

1. **當指“款項空缺/資金短缺”時**
翻譯為：**Short of funds** 或 **Funds shortage**
例句：公司目前款空，需要盡快融資。
The company is currently short of funds and needs financing as soon as possible.

2. **當指“挪用款項”（非正式用法）時**
翻譯為：**Misappropriation of funds**
例句：他因款空公款被起訴。
He was prosecuted for misappropriation of public funds.

請根據具體語境選擇對應的翻譯。如果需要進一步解釋，請提供更多細節！