necessity
英 [nɪ'sesɪtɪ]
美[nə'sɛsəti]
- n. 需要；必然性；必需品
词组搭配
necessity is the mother of invention
(proverb)when the need for something becomes imperative, you are forced to find ways of getting or achieving it
(谚)需要乃发明之母
of necessity
As an inevitable consequence; necessarily.
无法避免的；必然地