"苛待"可以翻譯為以下幾種英文表達，具體取決于上下文：

1. **Mistreat**（一般指虐待、不公正對待）
- *He was accused of mistreating his employees.*（他被指控苛待員工。）

2. **Ill-treat**（與mistreat類似，強調惡劣對待）
- *The prisoners were ill-treated by the guards.*（囚犯們被守衛苛待。）

3. **Abuse**（更嚴重的虐待，可能涉及身體或精神傷害）
- *She suffered from years of emotional abuse.*（她多年遭受情感苛待。）

4. **Harsh treatment**（嚴厲或不人道的對待）
- *The workers complained about harsh treatment by their supervisor.*（工人們抱怨主管的苛待。）

5. **Oppress**（指壓迫性對待，常用于系統性不公）
- *The regime was known for oppressing its citizens.*（該政權以苛待民眾聞名。）

如果是職場或日常關系中的苛待，**mistreat** 或 **ill-treat** 最常用；若涉及暴力或嚴重傷害，則用 **abuse**。