《汉书·传·外戚传下》
当时有一群燕子大约几千只，衔土投到丁姬的空穴中。
时有群燕数千，衔土投丁姬穿中。
At that time, there were about several thousand swallows that carried soil and dropped it into Ding Ji's empty hole.
<s>[INST] Render the following Classical Chinese text into fluent English: 时有群燕数千，衔土投丁姬穿中。 [/INST] At that time, there were about several thousand swallows that carried soil and dropped it into Ding Ji's empty hole.</s>
Render the following Classical Chinese text into fluent English: 时有群燕数千，衔土投丁姬穿中。
user
At that time, there were about several thousand swallows that carried soil and dropped it into Ding Ji's empty hole.
assistant