《明史·志·卷五十三》
主管部门以大亩当小亩来与旧有数额相符，有几亩当一亩的。
有司乃以大亩当小亩以符旧额，有数亩当一亩者。
The competent authorities used the large mu to match the small mu and the old number, and several mu were equal to one mu.
<s>[INST] Analyze the grammatical structure of the following Classical Chinese sentence and provide its English translation: 有司乃以大亩当小亩以符旧额，有数亩当一亩者。 [/INST]

 Grammatical analysis:
- 有司 (yǒu sī): The subject, referring to the competent authorities.
- 乃 (nǎi): A modal particle indicating a logical consequence.
- 以 (yǐ): A preposition used to indicate purpose or means.
- 大亩 (dà mǔ): The large mu, which is a unit of land measurement.
- 当 (dāng): A verb meaning "to equal" or "to match".
- 小亩 (xiǎo mǔ): The small mu, which is a unit of land measurement smaller than the large mu.
- 以 (yǐ): A preposition used to indicate purpose or means.
- 符 (fú): A verb meaning "to match" or "to conform to".
- 旧额 (jiù é): The old number or quota.
- 有 (yǒu): A verb meaning "to have" or "to exist".
- 数亩 (shù mǔ): Several mu, indicating a quantity of land greater than one mu.
- 当 (dāng): A verb meaning "to equal" or "to match".
- 一亩 (yī mǔ): One mu, a unit of land measurement.

 English translation:
 The competent authorities used the large mu to match the small mu and the old number, and several mu were equal to one mu.</s>
Analyze the grammatical structure of the following Classical Chinese sentence and provide its English translation: 有司乃以大亩当小亩以符旧额，有数亩当一亩者。
user
Grammatical analysis:
- 有司 (yǒu sī): The subject, referring to the competent authorities.
- 乃 (nǎi): A modal particle indicating a logical consequence.
- 以 (yǐ): A preposition used to indicate purpose or means.
- 大亩 (dà mǔ): The large mu, which is a unit of land measurement.
- 当 (dāng): A verb meaning "to equal" or "to match".
- 小亩 (xiǎo mǔ): The small mu, which is a unit of land measurement smaller than the large mu.
- 以 (yǐ): A preposition used to indicate purpose or means.
- 符 (fú): A verb meaning "to match" or "to conform to".
- 旧额 (jiù é): The old number or quota.
- 有 (yǒu): A verb meaning "to have" or "to exist".
- 数亩 (shù mǔ): Several mu, indicating a quantity of land greater than one mu.
- 当 (dāng): A verb meaning "to equal" or "to match".
- 一亩 (yī mǔ): One mu, a unit of land measurement.

 English translation:
 The competent authorities used the large mu to match the small mu and the old number, and several mu were equal to one mu.
assistant