动 move，stir，act，get moving；名 （动作） movement，action；副 （动不动； 常常） frequently，easily，at every turn ；

[例句] 他因为对一位同事动粗而被开除了。 He was fired from his job after roughing up a colleague.

[例句] 他们要是觉得受到了怠慢，就会大动肝火。 They get angry if they think they are being treated disrespectfully.

vibrate，vibration，vibrance，vibrancy，librate ；

[例句] 它的振动幅度取决于引力场的强度。 Its oscillation depends on the strength of the gravitational field.

[例句] 振动幅度的大小决定声音的大小. The amplitude of the vibration determines the loudness of the sound.

wave，shake，sway，rock，agitate ；

[例句] 棕榈树在太平洋和煦的微风中轻轻地摇动。 Palm trees stir in the soft Pacific breeze.

[例句] 她摇动摇篮哄婴儿入睡。 She rocked the baby to sleep in its cradle.

activity，exercise，flexible，campaign；

[例句] 营业收入翻倍至250亿美元,得益于固定收益和股票领域兴旺的交易活动. Revenue doubled to $ 25 bn a boom in trading fixed income and equities.

[例句] 现在我们有 “ 单人间优惠”活动,只要三十美元一晚. But we've got a Single Super Saver Special going on right now – only $ 30 a night.

undulate，fluctuate，[物] wave ，wave propagation，popple ；

[例句] 葡萄酒生产过剩及由此造成的市价低迷引起了经济波动。 Overproduction and consequent low market prices for wine caused economic tremors.

[例句] 全球气温一直在轻微波动。 There have always been slight oscillations in world temperature.

move about，get about，act，take action，action ；

[例句] 这次我们确实可以采取行动了。 By golly we can do something about it this time.

[例句] 现在人们开始意识到必须采取断然的行动。 Now there is a dawning realisation that drastic action is necessary.

push forward，promote，give impetus to，goose，drive ；

[例句] 在证券交易所，市场在大量买单的推动下有所上扬。 On the Stock Exchange, aggressive buying propped the market up.

[例句] 杰伦·拉尼尔创造了“虚拟现实”这个词，并成为推动其早期发展的先驱人物。 Jaron Lanier coined the term "virtual reality" and pioneered its early development.

flow，run，streaming，on the move；

[例句] 我把油画平放以防止未干的颜料流动。 I lay the painting flat to stop the wet paint running.

[例句] 该公司列明其流动资产为5,690万美元。 The company lists its current assets at $56.9 million.

shake，tremble，vibrate，chatter，dithering ；

[例句] 斯特恩抖动着肩膀。 Stern twitched his shoulders.

[例句] 树上的叶子瑟瑟抖动。 The leaves trembled in the trees.

shift，move，[力] translation motion，removal，budge ；

[例句] 尽管他身形庞大，移动起来还是很灵巧。 Despite his bulk he moved lightly on his feet.

[例句] 这个炉子底下带轮子，很容易四处移动。 The stove is on wheels so it can be shuffled around easily.

voluntarily，of one's own accord，automatic，spontaneous，automatism ；

[例句] 我挤出人群，踏上了自动扶梯。 I pushed through the crowds and on to the escalator.

[例句] 他们安了自动点唱机后，我在那儿学会了跳摇摆舞。 I learnt to jive there when they got the jukebox.

excitation，turbulent motion，turbulence，destabilization ；

[例句] 雾化过程比汽化过程对扰动更为敏感. The atomization process is more sensitive to disturbance than vaporization.

[例句] 多而大的涡流区延迟了扰动的混合过程. Numerous and extensive eddy cavities retard the turbulent mixing process.

swing，sway，[机] jigging motion，nodding action，flirt ；

[例句] 如果你挠他的下巴，他的耳朵就会摆动。 His ears wiggled if you scratched his chin.

[例句] 挡风玻璃上的雨刮“啪嗒啪嗒”地来回摆动。 The windscreen wipers thudded back and forth.

roll，trundle，rolling，volution，scroll ；

[例句] 我向下滚动文档搜索“美利坚合众国”。 I scrolled down to find "United States of America".

[例句] 用箭头键把文件目录滚动一遍。 Use the arrow keys to scroll through the list of files.

braking，retardation，retaining，stopping，apply the brake ；

[例句] 放出钢丝绳时要制动. Check a cable when it's running out.

[例句] 其转向和制动装置都完全符合一辆运动型汽车的标准。 The steering and braking are exactly what you want from a sporty car.

quake，quiver，vibrate，tremble，flicker ；

[例句] 突然的拉力使得整只船剧烈颤动。 The whole ship shuddered and trembled at the sudden strain.

[例句] 他感到胳膊不由自主地颤动。 He felt a tremor in his arms.

trends，general trend of affairs，dynamic state，dynamic condition，dynamic ；

[例句] 英国广播公司对外广播频道的“健康动态”节目由迪克·奥利弗主持。 "Health Matters" is introduced by Dick Oliver on BBC World Service.

[例句] 思想的交流有助于理解家庭动态。 The interchange of ideas aids an understanding of family dynamics.

[物] （运动物体的质量和速度的乘积） momentum，quantity of motion ；

[例句] 旋转的陀螺正在失去动量. The spinning top was losing momentum.

[例句] 下落的物体落下时动量增加. A falling object gains momentum as it falls.

slither，slippage，slipping，slide，glide ；

[例句] 一按电钮,大门就滑动开启. The gate slid opened at the push of a button.

[例句] 滑动门在槽沟中移动. Sliding doors move in grooves.

float，drift，be unsteady，be unstable，fluctuate ；

[例句] 亚历山大的工兵修建了浮动的筏子来运载沉重的弩炮. Alexander's engineers built floating rafts for the heavy catapults.

[例句] 英镑 ( 向上/向下 ) 自由浮动. The pound floated ( up / down ).