v.摇摆( vacillate的过去式和过去分词 );振荡;波动;犹豫;
例句:
I vacillated for a long time between medicine and seminary.
在学医和进神学院之间我犹豫了很久.
The line on the monitor vacillated.
监视器上的线条摇曳不定.
He vacillated between refusal and consent.
到底要拒绝或答应他犹豫不决.