A bookrest is a small frame, wood or metal, that holds a book open and upright so you can read without using your hands — at a desk, in the kitchen, or beside the music. Rest here means a thing that supports, not sleep. It is a practical, slightly old-fashioned word; many shops today would just say book stand, which is the same object with a plainer name. Though actually, it is not a bookshelf. A bookshelf holds many books against a wall. A bookrest holds one book up, in the air, while you use it. Quiet, useful English; you meet it in kitchens, music rooms, and old catalogues more than in chat.

閱讀架（撐著書、讓你不用用手拿的那種；不是牆上的書架）