1.enrich vt.使富裕,使富有;给…添加肥料
The farmers ploughed the vegetable leaves back to enrich the soil.
农夫们把蔬菜叶犁入土中作肥料 。
2.yields n.产量
The climate has grown more equable and the crop yields have risen.
天气变得更加温和,粮食产量也已经提高 。
3.resistance n.抵抗力
This disease is surprisingly difficult to catch as most people have a natural resistance to it.
由于多数人对这种病具有天然免疫力,所以发病率低得出奇 。
4.malnutrition n.营养不良
Infections are more likely in those suffering from malnutrition.
营养不良的人更有可能被传染 。