您要查找的是不是：
- backward bent vane 后弯式叶片
- We bent over backward to help them. 我们尽了最大努力帮助他们。
- There is a vane on top of the building. 在大楼的顶端有一只风信旗。
- In winter the weather vane often freezes up. 气象风向标在冬季经常僵立不动。
- He lined out for home without a backward glance. 他头也不回，急忙往家里走去。
- Backward bending labor supply curve 后弯的劳动供给线
- I bent back too far and hurt my back muscles. 我后仰得太厉害，扭伤了腰部。
- All eyes were bent on the fancy car. 所有的眼神都注视那部新奇的车。
- forward and backward bending tester 往复弯曲试验机
- The stream takes a sudden bend to the east. 小溪突然转向东流。
- She bent over backwards to show it. 她拚命把它显露出来。
- Joyce is bent on buying a new house. 乔伊斯一心想买一套新住房。
- Laura bent her head and hurried on. 劳拉低着头匆匆往前走。
- This part of the country is still backward. 这个国家的这个地区仍很落后。
- Judy bent her face low over the notebook. 朱迪把脸凑近笔记本。
- In some cities housing conditions went backward. 某些城市的住房条件越来越差。
- The teacher was patient with backward children. 那位老师对迟钝的学童十分耐心。
- He bent down and undid his shoelaces. 他俯下身来解开鞋带。
- He looked backward over his shoulder. 他回头向后看。
- A Lan bent down and kissed the child. 阿兰俯下身，亲了亲孩子。
