oscillate
🇺🇸
/ˈɑːsɪleɪt/
🇬🇧
/ˈɒsɪleɪt/
to move back and forth between two points or states
Her emotions oscillated between sadness and happiness.
她的情绪在悲伤和快乐之间摇摆。
to move regularly between two places or positions
The pendulum on the clock oscillated back and forth.
钟上的摆来回摆动。
to change regularly in strength or direction
The signal strength oscillated as we moved further away.
随着我们越走越远,信号强度开始波动。