USAGE NOTE 用法说明: pay, income, salary, and 和 wage
Pay is a general word for money that you earn by working. pay （工资，薪水）是一般用语，指劳动所得的金额:
The pay in her new job isn't very good. 她的新工作工资不太高。
Income is the money that you receive from anywhere. income（收入）是你从任何地方赚到的钱:
an investment income 投资带来的收入
The income is fairly high, with both of them working. 他们两个人都在工作，收入相当可观。
A salary is the money that someone is paid every month or year, especially in a professional job. salary（薪金，薪水）是每月或每年的工资，尤指专业人员的薪水:
What's the yearly salary for a teacher? 当教师一年薪水有多少？
A wage is the pay that someone earns every hour or every week. wage（工钱）是按小时或周算的工资:
The minimum wage is $5.25 an hour. 最低工资是一小时 5.25 美元。
Our wages have been increased to ￡500 a week. 我们的工资已增加到每周 500 英镑。