vacillate
英['v?s?le?t]
美
- vi. 猶豫；躊躇；搖擺
英英釋意
- 1. be undecided about something; waver between conflicting positions or courses of action;
- "He oscillates between accepting the new position and retirement"
- 2. move or sway in a rising and falling or wavelike pattern;
- "the line on the monitor vacillated"