vacillation
n. 踌躇；不果断；游移不定
例句
Vacillation is the cause of his failure.
优柔寡断是他失败的原因。
《新英汉大辞典》
You are expected to answer the call with immediate actions and not with vacillation.
希望大家闻风而动，不要举棋不定。
All this may sound like vacillation, but it provides an important lesson.
所有这些推理听起来人们就像是在犹豫不决，但它也给了我们一个重要的教训。
