bone up on a subject ne demek?

Bir konuyu kısa bir zaman içinde büyük çabayla incelemek, çok çalışmak, ineklemek

Düz veya kıvrımlı her çeşit yumuşak kumaş vb. maddeden yapılan başlık. Havuza girerken kullanımı yaygındır.
Bir tür başlık. (Saçı dış temastan koruma amaçlı)
One of the pieces or parts of an animal skeleton; as, a rib or a thigh bone; a bone of the arm or leg; also, any fragment of bony substance.
The frame or skeleton of the body.
To sight along an object or set of objects, to see if it or they be level or in line, as in carpentry, masonry, and surveying.
Shade of white the color of bleached bones rigid connective tissue that makes up the skeleton of vertebrates the porous calcified substance from which bones are made remove the bones from; 'bone the turkey before roasting it' consisting of or made up of bone; 'a bony substance'; 'the bony framework of the body'.
Lady's cap.
Bathing cap.
Coif.
Rigid connective tissue that makes up the skeleton of vertebrates.

Dokuzdan sonra gelen sayının adı.
Bu sayıyı gösteren 10, X rakamlarının adı.
Dokuzdan bir artık.
Ketonları gösteren son ek, propanon (dimetil keton): 2-bütanon (etil metil keton) gibi.
-one.
Deca-.
In progress; proceeding; as, a game is on.
In operation or operational; 'left the oven on'; 'the switch is in the on position' planned or scheduled; 'the picnic is on, rain or shine'; 'we have nothing on for Friday night' indicates continuity or persistence or concentration; 'his spirit lives on'; 'shall I read on?' in a state required for something to function or be effective; 'turn the lights on'; 'get a load on'.
With a forward motion; 'we drove along admiring the view'; 'the horse trotted along at a steady pace'; 'the circus traveled on to the next city'; 'move along'; 'march on'.
Indicates continuity or persistence or concentration; 'his spirit lives on'; 'shall I read on?'.