atop

prep (dated or rhet 旧或修辞) at or on the top of (sth) 在...顶上: a seagull perched atop the mast 停歇在桅杆顶上的海鸥.

Atlantic, atlas, atmosphere, atmospheric, atmospheric pressure, atmospherics, atoll, atom, atom bomb, atomic, atomic bomb (also A-bomb, atom bomb), atomic energy, atomic number, atomic pile, atomize, atomise, atomizer, -iser, atonal, atonality, atone, atonement, atrocious, atrociously, atrociousness, atrocity, atrophy, attach, attach importance to, attach oneself to, attach to, attach...to, attache, attache case, attached, attached to, attaching, attachment, attack, attacker, attain, attain to,