《元史·列传·卷十二》
十八岁时随本国国王归附于太祖，充当宿卫。
年十八，随其主内附，充宿卫。
At the age of eighteen, he followed the king of his own country to submit to Taizu and acted as an escort.
<s>[INST] Render the following Classical Chinese text into fluent English: 年十八，随其主内附，充宿卫。 [/INST] At the age of eighteen, he followed the king of his own country to submit to Taizu and acted as an escort.</s>
Render the following Classical Chinese text into fluent English: 年十八，随其主内附，充宿卫。
user
At the age of eighteen, he followed the king of his own country to submit to Taizu and acted as an escort.
assistant