1. In order to meet the needs of agriculture we must produce more tractors.
    为了适应农业的需求，我们必须生产更多的拖拉机。

2. Industrialized farming methods produce cheap meat products: beef, pork and chicken.
    工业化的农作方式生产出廉价的肉类制品--牛肉、猪肉和鸡肉。

3. Identical genes don't produce identical people, as anyone who knows a set of identical twins can tell you.
    相同的基因不会复制出相同的人。这一点，任何认识一些双胞胎的人都可以告诉你。

4. If the company's technicians succeed, it may be more efficient to produce such pigs by cloning than by current methods.
    如果该公司的技术人员成功的话，那么用克隆技术来繁殖这样的猪比用现行的方法更为有效。

5. Fish farming is very efficient: producing a kilogram of fish utilizes less than 2 kilograms of feed, but it takes 2.2 kilograms of feed to produce 1 kilogram of chicken.
    养鱼场的生产效率相当的高：生产1公斤鱼类只需要不到2公斤的饲料，而生产1公斤鸡肉需要2.2公斤的饲料。