《明史·志·卷六》
八月乙巳日，京城发生大地震。
八月乙巳，京师大震。
On August Yi-si Day, a major earthquake occurred in the capital.
<s>[INST] Break down the structure and provide an English interpretation of the presented Classical Chinese phrase: 八月乙巳，京师大震。 [/INST]
**English interpretation:** On August Yi-si Day, a major earthquake occurred in the capital.

**Structural analysis:**
* **八月乙巳 (bā yuè yǐ sì):** Eighth month, Yi-si Day. "Yi-si" is the 3rd day of the 12-day cycle used in traditional Chinese calendars.
* **京师 (jīng shī):** Capital city.
* **大震 (dà zhèn):** Major earthquake.

Therefore, the phrase can be interpreted as: "On the 3rd day of the 12-day cycle in the eighth month, a major earthquake occurred in the capital city."</s>
Break down the structure and provide an English interpretation of the presented Classical Chinese phrase: 八月乙巳，京师大震。
user
**English interpretation:** On August Yi-si Day, a major earthquake occurred in the capital.

**Structural analysis:**
* **八月乙巳 (bā yuè yǐ sì):** Eighth month, Yi-si Day. "Yi-si" is the 3rd day of the 12-day cycle used in traditional Chinese calendars.
* **京师 (jīng shī):** Capital city.
* **大震 (dà zhèn):** Major earthquake.

Therefore, the phrase can be interpreted as: "On the 3rd day of the 12-day cycle in the eighth month, a major earthquake occurred in the capital city."
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