详细解释:vi. 游移不定, 踌躇, 犹豫, 摇摆
词型变化：
名词:vacillation副词:vacillatingly动词过去式:vacillated过去分词:vacillated现在分词:vacillating第三人称单数:vacillates英语解释：
动词 vacillate:
be undecided about something; waver between conflicting positions or courses of action同义词：hover, vibrate, oscillate