块: lump (of earth), chunk, piece, classifier for pieces of cloth, cake, soap etc, (coll.) classifier for money and currency units...
忙: busy, hurriedly, to hurry, to rush...
饼: round flat cake, cookie, cake, pastry...
里面: inside, interior, also pr....
背景: background, backdrop, context, powerful backer...
记号: mark, symbol, notation, seal...
归还: to return sth, to revert...
势力: power, influence, a force (military, political etc)...