oscillate /ˈɒsɪˌleɪt/ ( oscillating, oscillated, oscillates )

• 1. 

  V-I If an object oscillates, it moves repeatedly from one position to another and back again, or keeps getting bigger and smaller. 摆动 [正式]

  例：

  I checked to see if the needle indicating volume was oscillating.

  我查看了那根音量指针是否在摆动。

• 2. 

  oscillation N-VAR

  例：

  Some oscillation of the fuselage had been noticed on early flights.

  在之前的几次飞行中，就察觉到了机身有些摇晃。

• 3. 

  V-I If the level or value of something oscillates, it keeps going up and down. (水平或价值)浮动 [正式] [no passive]

  例：

  Oil markets oscillated on the day's reports from Geneva.

  石油市场因当日来自日内瓦的报道而出现了起伏。

  例：

  ...an oscillating signal of microwave frequency.

  ...一个微波炉频率的波动信号。

• 4. 

  oscillation N-VAR

  例：

  There have always been slight oscillations in world temperature.

  全球气温一直在轻微地波动。

• 5. 

  V-I If you oscillate between two moods, attitudes, or types of behaviour, you keep changing from one to the other and back again. (在两种情绪、态度或行为类型间)举棋不定 [正式] [no passive]

  例：

  The president of the republic oscillated between a certain audacity and a prudent realism.

  该共和国总统施政时而大胆，时而谨慎务实。

• 6. 

  oscillation N-UNCOUNT

  例：

  ...that perpetual oscillation between despair and distracted joy.

  ...在绝望和心不在焉的快乐间永无休止的徘徊。