《徐霞客游记·滇游日记二十九》
四十年之间，两次被毁，今天的桥是己巳年重建的，委派了一个千户守卫，本来就知道这是逛西的咽喉，千百年不能改变。
四十年间，二次被毁，今己巳复建，委千户一员守卫，固知迤西咽喉，千百载不能改也。
In the forty years, it was destroyed twice. Today, the bridge was rebuilt in the year of Jisi, and a thousand households were assigned to guard it. It was originally known that this was the throat of visiting the West, and it cannot be changed for thousands of years.
<s>[INST] 用英语解释这段文言文的意思: 四十年间，二次被毁，今己巳复建，委千户一员守卫，固知迤西咽喉，千百载不能改也。 [/INST] In the forty years, it was destroyed twice. Today, the bridge was rebuilt in the year of Jisi, and a thousand households were assigned to guard it. It was originally known that this was the throat of visiting the West, and it cannot be changed for thousands of years.</s>
用英语解释这段文言文的意思: 四十年间，二次被毁，今己巳复建，委千户一员守卫，固知迤西咽喉，千百载不能改也。
user
In the forty years, it was destroyed twice. Today, the bridge was rebuilt in the year of Jisi, and a thousand households were assigned to guard it. It was originally known that this was the throat of visiting the West, and it cannot be changed for thousands of years.
assistant