《明史·列传·卷九十六》
起初他冒用徐姓，到这时才恢复齐姓。
初冒徐姓，至是始复焉。
At first, he had used the surname Xu as a ruse, but at this time, he reverted to the surname Qi.
<s>[INST] Provide a modern Chinese interpretation of the following Classical Chinese passage: 初冒徐姓，至是始复焉。 [/INST] 起初他冒用徐姓，到这时才恢复齐姓。</s>
Provide a modern Chinese interpretation of the following Classical Chinese passage: 初冒徐姓，至是始复焉。
user
起初他冒用徐姓，到这时才恢复齐姓。
assistant