相关单词同义词even, low, level, shallow, blank, positively, emphatically, apartment, plane, even, 近义词adj. even, horizontal, level, low, plane, smooth, burst, dead, dull, empty, lifeless, plain, positive n. apartment, pad, penthouse, rooms, tenement反义词adj.crooked, tortuous临近词flatten, flask, Flatz, Flath, Flati, Flatt, flats, Flatto, flatly, Flaten, Flatte, flatty相似词flashmob, flashpoint, flashy, flask, flat back four, flat feet, flat lay, flat out 2, 返回 flat