挥手的英文：
a wave of the hand

参考例句：

Saw the dark silhouette of the family waving farewell.
看见挥手道别的那一家人的黑色剪影。

A sweeping gesture
做大幅度挥手动作

Ann always to stand at the window and waves to see off.
安总要站在窗口前并挥手送别。

She gave a hurried wave and set off across the grass.
她匆匆地挥了挥手便穿过草地离开了。

Karen and Nell had waved me off from the door-way.
卡伦和尼尔已经在门口挥手与我告别了。

The officer in command, the inevitable childish Lieutenant, was waving to a man with the mine detector
带队的果然又是一名中尉，一个乳臭未干的小伙子，这人正挥手给一个带探雷器的士兵下达指示。

She wept when he ran down the gangplank; sobbed as he stood on the dock, waving.
他急步走下跳板，她哭个不停。他站在码头上挥手，她还在呜咽。

Across the globe, different nationalities wave, call, confirm, point things out,
在世界各地，不同国籍的人都会做出挥手、招唤的动作，也都会表达肯定、强调和表示感谢，

a waft of the hand
挥手(告别)

A languid wave of the hand.
无精打采的挥手

wave是什么意思：
n. 波浪；波动；挥手；高潮；卷曲；波；突发，高涨；浪潮；人流；人浪
v. 摇摆，波动；飘扬；（向…）挥手示意；卷发；（使）成波形；挥舞

A tsunami is not just a wave, but a wave train.
海啸不是单个波，而是一列波。

There are two kinds of elastic waves in solids a compressional wave and a transverse wave
在固体中有两类弹性波，一类是压缩波，另一类是横波。

The nonlinear wave shape degenerates to a sinusoidal wave
非线性波形衰减成正弦波。

wave mode selector
波模选择器

The waves wash the foot of the cliffs.
波浪拍打断崖底部。