手柄的英文：
hand grip
hand hold
hand knob
hand lever
hand shank
rein

参考例句：

A small motorbike having a low frame, small wheels, and elevated handlebars.
微型摩托车一种车架低、车轮小且手柄较高的小型摩托车。

A long - handled implement used to strike a ball,as in croquet and polo.
球棍一种用于击球的长手柄器具，如在槌球和马球中

Rotate the handle gently
轻轻转动手柄.

Hollow bottle handles could be made in the extrusion blow moulding process.
挤吹瓶子的手柄是中空的。

Move(a switch,lever,etc)in order to operate a mechanism
扳动(开关、手柄等)以操纵机械

This handle won't screw.
这个手柄转不动了。

Attach the handle to the box.
把提手柄装到箱子上去。

He pushed the handle into neutral.
他将手柄扳到空档。

The taps have a lever to control the mix of hot and cold water.
水阀上有一个手柄控制冷热水。

The stock of a rifle/plough/whip
步枪枪托[犁具手柄/鞭子把手]

grip是什么意思：
n. 紧握；对…的影响力；理解；把手
v. 紧握；吸引注意力；对…产生强有力的影响

to have a sound grip of a problem
对问题有较深的理解

hand baggage grip
手提包

The country was gripped by a frenzy of nationalism.
这个国家笼罩在民族主义的狂热中。

hold是什么意思：
n. 控制；握住；保留
v. 拿住，握住；保留；保持不变，持续；约束，控制；拘留；容纳；持有；适用

nail down; nail in;hold by
钉住;使人遵守诺言

We hold on in spite of the storm
我们冒着暴风雨继续前进。

hold a fair to raise money
举办义卖会筹款

knob是什么意思：
n. 旋钮；形把手；小块；疙瘩；瘤；球形突出物

A knobbed bone, as of a knuckle or joint.
指节骨一种圆形突出的骨头，如指关节或关节的

Twist the knob clockwise.
按顺时针方向转动把手。

As he turned the knob the sound diminished.
他一转旋钮，声音就变小了。