词汇讲解：

1. rise vi.上升; 增强
例句：Cotton consumption has continued to rise. 
棉花的消费一直在继续增长。 

2. contain vt.包含，容纳
例句：The off-flavored eggs were found to contain large amounts of trimethylamine.
人们发现异味蛋含有大量的三甲胺。 

3. reduce vt.减少; 缩小
例句：We must reduce the production cost. 
我们必须降低生产成本。 

4. proposal n.提议; 建议
例句：He made no comments on our proposal. 
他对我们的建议没有作评论。 


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