您要查找的是不是：
- Necessity mothers invention. 需要会产生发明。
- Necessity is the mother of invention. 需要是发明之母。
- Necessity is the mother of invention, but patent right is the father. 需要是发明之母，但专利权是发明之父。
- They say that necessity is the mother of invention. 人们说，需要是创造发明之母。
- Invention is the mother of necessity. 发明是需要之母.
- Necessity isb the mother of invention. 需要是发明的动力。
- In most instances, necessity is the mother of invention. 在绝大数情况下，需要是发明之母。
- He was disobedient to his mother. 他不听他母亲的话。
- Necessity is the other of invention. 需要是发明之母。
- Necessity is the mather of invention. 需要是发明之母。
- All mothers like to sing lullabies to their babies. 所有的母亲都喜欢给她们的孩子唱摇篮曲。
- It was done under the pressure of the necessity. 这件事是在迫切需要的情况下而做的。
- Frightened children were calling for their mothers. 受惊的孩子们呼喊著找妈妈。
- Necessity may be the mother of invention in evoluntionary processes. 在进化过程中，需要乃发明之母。
- Little children always cling to their mothers. 小孩子总是紧依着母亲。
- Food is a necessity, but wine is an extravagance. 食物是必需品,而酒则是奢侈品。
- Small children cling to their mothers. 小孩子都缠着母亲。
- She felt the necessity of accepting the invitation. 她感到必须接受这一邀请。
- This family is in great necessity. 这户人家穷困到极点。
- We are now under the necessity of doing the work. 我们现在必须做这工作。
