The old servant led Mr Utterson through the laboratory and up some stairs to the doctor's private study above.

老仆人带他经过实验室，上楼来到博士的私人书房。

youdao

The old servant led Mr Utterson through the laboratory and up some stairs to the doctor's private study above.

老仆人带他经过实验室，上楼来到博士的私人书房。

youdao