n.必要(性),(迫切)需要,必需品,自然规律
There is agreement on the necessity of reforms.
对改革的必要性已经达成了共识。
The assembly line of necessity kept moving.
生产线势必保持运转下去。
Some people have to lead stressful lifestyles out of necessity.
一些人迫于生计不得不过着紧张忙碌的生活。