reversal
词形变化：
动词过去式: revered | 动词过去分词: revered | 动词现在分词: revering | 动词第三人称单数: reveres |
同义词：
turnaround | about-face | setback | reverse | volte-face | blow | U-turn | about-turn | defection | tragedy | hitch | problem | snag | misfortune | difficulty | turnabout | transposition | reversion | flip-flop | policy change | turn around | black eye |
反义词：
词义辨析：
同义参见:
defection
tragedy