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- People and animals need clean air to breathe. 人和动物都需要清洁的空气来呼吸。
- Animals need to have their hair brushed. 动物需要经常洗刷其皮毛。
- Plants and animals need water to grow. 植物和动物需要水来生长。
- Lesson 3 How do plants and animals need each other? 第三课：植物和动物是如何互相需要的？
- Animals need our love and compassion. 动物需要我们的爱和怜悯。
- The animal needing something knows how much it needs, the man does not. 如果动物需要某种东西,它知道自己需要多少,而人类却不然。
- The food crops people eat, vegetables fruits, the forage grass fools domestic animal needs, all come from the plants. 人们吃的五谷杂粮、蔬菜、果实 ,禽畜所需的饲料青草 ,都来源于植物。
- If ever an animal needed to be fast, it is the slow loris. 如果世界上也有动物需要提速的话，那就是懒猴了。
- Have we merely carried our animal need for shrewd perceptions to an absurd extreme? 是否我们只是把精确体察世界的动物需求带到了荒谬的极端？
- The animals need milk from their mothers for three or four months. 动物大概有三到四个月的时间需要用母乳喂养。
- Young animals need more sleep than fully grown animals. 幼小的动物比成年动物需要更多的睡眠。
- The animals need food supplements throughout the winter. 动物整个冬天都需要食物补给。
- In their skins they have tiny plants which act as "dustman", taking some of the waste products from the coral and giving in return oxygen which the animal needs to breathe. 前面说了废料将会以“不方便的途径”被储存起来，后面马上跟了三个具体的例子“深埋地下”，“丢入枯矿”和“沉人海底”来来做具体解释，这也是一种重复。
- Plants and animals need water to grow. If there is no rain, they will die. 动植物的生长需要水。如果不下雨,他们就会死。
- What type of animal needs oil? 什么动物需要油?
- It is often unpleasant to see an anomaly animal. 见到一只畸形动物常常会使人感到不快。
- A stunt man needs to have a good guardian angel. 当特技替身演员的得有个守护天使来保佑。
- The method seems good but it needs to be tried out. 这个方法似乎不错，但需要试验一下。
- When an animal needs faster legs to survive, it could use body-to-gene communication to direct the genes to make faster leg muscles, and then pass that innovation on to its offspring. 当一种动物需要一双快腿才能幸存下来时，它可以利用由身体到基因的交流方式引导基因制作快腿肌肉，之后把改革后的基因传递给后代。
- The animal is not used to the hotness of its new habitat yet. 这个动物还不习惯新栖息地的炎热。
