《资治通鉴·唐纪·唐纪二十三》
张易之兄弟怀恨已久，常常想恶意诬陷宋。武则天清楚这一点，宋才因此而得以幸免。
诸张积怒，常欲中伤之；太后知之，故得免。
Brothers Zhang Yizhi had harbored resentment for a long time, and they often wanted to falsely accuse Song. Wu Zetian understood this clearly, which was the reason that Song was spared.
<s>[INST] Highlight and translate the key terms in the Classical Chinese text: 诸张积怒，常欲中伤之；太后知之，故得免。, and explain their significance in the context of the passage. [/INST]
**Key terms and their translations:**
- 诸张: the Brothers Zhang (Zhang Yizhi and Zhang Changzong)
- 积怒: harbored resentment for a long time
- 中伤: falsely accuse
- 太后: the Empress Dowager (Wu Zetian)
- 免: spared

**Final English translation:**
Brothers Zhang Yizhi had harbored resentment for a long time, and they often wanted to falsely accuse Song. Wu Zetian understood this clearly, which was the reason that Song was spared.

**Significance of the key terms in the context of the passage:**
- **诸张积怒**: This phrase highlights the animosity that the Zhang brothers held against Song, providing context for their subsequent actions.
- **中伤**: This term suggests that the Zhang brothers' accusations against Song were not based on事实 (facts), but rather malicious intent.
- **太后知之**: The Empress Dowager's awareness of the Zhang brothers' intentions implies her skepticism towards their claims and her support for Song.
- **故得免**: This phrase indicates that Song was spared from punishment or harm due to the Empress Dowager's intervention.</s>
Highlight and translate the key terms in the Classical Chinese text: 诸张积怒，常欲中伤之；太后知之，故得免。, and explain their significance in the context of the passage.
user
**Key terms and their translations:**
- 诸张: the Brothers Zhang (Zhang Yizhi and Zhang Changzong)
- 积怒: harbored resentment for a long time
- 中伤: falsely accuse
- 太后: the Empress Dowager (Wu Zetian)
- 免: spared

**Final English translation:**
Brothers Zhang Yizhi had harbored resentment for a long time, and they often wanted to falsely accuse Song. Wu Zetian understood this clearly, which was the reason that Song was spared.

**Significance of the key terms in the context of the passage:**
- **诸张积怒**: This phrase highlights the animosity that the Zhang brothers held against Song, providing context for their subsequent actions.
- **中伤**: This term suggests that the Zhang brothers' accusations against Song were not based on事实 (facts), but rather malicious intent.
- **太后知之**: The Empress Dowager's awareness of the Zhang brothers' intentions implies her skepticism towards their claims and her support for Song.
- **故得免**: This phrase indicates that Song was spared from punishment or harm due to the Empress Dowager's intervention.
assistant