need v.需要；必需n.需要；必要；缺乏aux.需要，必须（无时态、人称变化，后与不带to的动词不定式连用，多用于疑问句和否定句）
双语例句
We need food and water for survival. 我们为了生存需要食物和水。
That was the influence of social thoughts at that time and the need of surviving for the historical drama writing and criticizing caused its emergence. 它的出现，主要由于当时社会思潮的影响以及历史剧创作与批评获取生存需要等原因。
