有谁能帮我写几个英语例子吗

1. As economies grow, there are major changes in technology, factor supplies, and demand .
当经济增长时，在技术、生产要素供应量和需求方面会有重大的变动。

2. However tough such a demand sounds, it changes the psychological balance in a perverse way.
不论这种要求听起来多么强硬，它对双方心理上的平衡起相反的作用。

3. The demand for and the supply of credit is closely linked to changes in liquidity.
信用的供求和流动资金的变化有密切关系。

4. There is only one kind of fiscal policy that can hope to bring about desired changes in aggregate demand .
只有一种财政政策可以带来总需求的理想变化。

1. Income effect (of a price change)
（价格变动的）收入效应

2. negative income effect 负所得效果

3. positive income effect 积极所得效果

1. substitution effect
替代效果;替代效应

2. Substitution effect (of a price change)
（价格变动的）替代效应

3. cross-substitution effect
交叉替代效应

4. effect of substitution
替代效应

5. upward substi