在线词典一反常态完全改变了平时的态度。拼音yī fǎn cháng tài解释完全改变了平时的态度。近义词一改故辙、急转直下、改弦易辙反义词一如既往、一成不变、持之以恒英文释义complete change from the normal state (idiom); quite uncharacteristic; entirely outside the norm; out of character
