Necessity is the mother of invention.
需要乃发明之母。
Necessity if&nbs p;the Mother of invention.
需求是发明之母。
Necessity really is the mother of invention.
需要才是发明之母。
Tough times can be the mother of invention.
艰难时世可能会催生发明创造。
They say that necessity is the mother of invention.
人们说，需要是创造发明之母。
In most instances, necessity is the mother of invention.
在绝大数情况下，需要是发明之母。
If necessity is the mother of invention, discontent is the father of progress.
如果需要是发明之母，不满足就是进步之父。
Necessity is the mother of invention, but patent right is the father. - Josh Billings.
需要是发明之母，但专利权是发明之父！——乔什·比林斯。
Skill and patience will succeed where force fails necessity is the mother of invention.
在体力做不到的时候，技巧和耐心会帮助人成功，需要是发明之母。
Necessity is the mother of all invention.
需要是发明之母。
Necessity is the mother of all invention.
需要是发明之母。
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