vacillating
动词 vacillate:
be undecided about something; waver between conflicting positions or courses of action
同义词:hover, vibrate, vacillate, oscillate
move or sway in a rising and falling or wavelike pattern
同义词:fluctuate, vacillate, waver
形容词 vacillating:
uncertain in purpose or action
同义词:vacillant, wavering