wavers

例句：

1. 1. He hesitated before making a decision.
   他在做决定前犹豫不决。
2. 2. The weather was unpredictable, causing the waves to vacillate.
   天气不可预测，导致波浪起伏不定。
3. 3. The candidate's performance wavered between strong and weak arguments.
   候选人的表现在有力和无力的论点之间摇摆不定。