正文：
Income is money received for a work or from investments.
收入是指从工作或投资中获得的金钱。
For a company to survive, its income needs to be more than its expenses.
为了使一家公司生存，其收入必须超过其支出。
People who earn a good salary can buy what they need to survive.
收入高的人可以购买生存所需的东西。
A receipt is given to you after you have paid for something.
你付款后会收到收据。
A receipt is a proof that you have paid for something.
收据是您已付款的证明。
A receipt shows that something has been paid for.
收据显示已付款。
After paying for something, be sure to get a receipt.
付款后，一定要获得收据。
An invoice is a request for payment.
发票是付款请求。
An invoice lists the prices and products being bought.
发票会列出价格和要购买的产品。
To invoice someone means to give them a bill for products or services.
为某人开票意味着给他们一张产品或服务帐单。
Once an invoice is paid it can be used as a receipt.
发票支付完毕后，就可以用作收据。
Taxes are what we pay to the government for government services.
税收是我们向政府支付的政府服务费用。
Taxes pay for many services such as education, police and health care.
税收用于支付许多服务，例如教育，警察和医疗保健。
An income tax is a tax on your income.
所得税是对您的收入征税。
In some countries, income taxes are very high.
在某些国家，所得税很高。
Interest is what we pay to lenders when we borrow money.
利息是我们借钱时向贷方支付的利息。
If someone lends you money, you pay interest for the use of that money.
如果有人借钱给您，则您需要为使用该笔钱支付利息。
People pay taxes to pay for government services.
人们缴税以支付政府服务。
