您要查找的是不是：
- 挠to scratch
- 挠性flexibility
- 抓痒挠scratchback
- 挠曲inflex
- 抓耳挠腮manner of anxiety or happiness
- 挠性管flexible pipe
- 滞后试验挠曲计flexometer for hysteresis test
- 挠性构件flexural member
- 薄板挠曲flexure of sheet
- 保形挠率conformal torsion
- 背挠back-scratcher
- 摆的挠曲pendulum flexure
- 测地挠率geodesic torsion
- 丘疹越挠越坏.Scratching the rash will make it worse.
- 挠曲面deflection surface
- 挠性轴flexible axle
- 挠子群torsion subgroup
- 倒转挠曲inverted flexure
- 单翼挠曲one-limbed flexure
- 防挠纵梁panting stringer
