back-hand的意思|示意

As the hand becomes used to the exercise and acquires resistance, more severe blows may be given, until finally a powerful blow with the full, back-hand sweep of the arm is possible.

当手掌逐渐适应了这个练习，并获得了抗力之后，可以使用更重的打击，直到最终能够以反手全臂猛扫的方式发出强有力的一击。

She put her hand accidentally upon the tapestry near her, and then sprang back, feeling quite startled.

她不小心把手放在身边的挂毯上，然后吓得后退，感到十分吃惊。

Ben took his beer-mug from his mouth and wiped his lips with the back of his hand.

本把啤酒杯从嘴边拿开，用他的手背擦了擦嘴唇。

Yen Cu sits back there. Yen raises your hand higher so everyone can see.

楚叶坐在那后面。叶把你的手举高，让所有的人都能看到。

I smiled back, took his hand, and gave him a light shake.

我也对他回以微笑，握住他的手，轻轻地与他握了握手。

Whichever it is, you know every twist and turn like the back of your hand.

不管是哪一种，你对每一个弯道都了如指掌。