bending

n. 弯曲度(偏移, 透镜的配曲调整)
v. 弯曲

例句与用法：

In the act of bending down, he slipped and hurt his back.

他一弯腰滑倒了，跌伤了背。

Not bending; inflexible.

坚挺的不能弯曲的; 坚挺的

A gesture of respect or reverence made chiefly by women by bending the knees with one foot forward and lowering the body.

屈膝礼一种主要由妇女做的表示尊重或恭敬的动作，弯曲双膝，一脚向前迈并使身体下坐

Touch your toes without bending your knees.

用手够到你的脚趾，膝盖别弯曲。