Zobacz także:
cram, grind away, drum, bone up, swot, get up, mug up, swot up, bone •
marrow, bone marrow •
marrow, vegetable marrow •
marrow, marrow squash, vegetable marrow •
kernel, substance, core, center, centre, essence, gist, heart, heart and soul, inwardness, marrow, meat, nub, pith, sum, nitty-gritty
