These are all words for an amount of money that you pay or are expected to pay, or for the act of paying. 以上各词均指款额、款项、付款。

• payment an amount of money that you pay or are expected to pay; the act of paying 指款额、款项、付款：◆ten monthly payments of $50 每月付款 50 美元，十次付清◆payment in advance 预先付款
• premium an amount of money that you pay once or regularly for an insurance policy; an extra payment added to the basic rate; a higher amount of money than usual 指保险费、额外费用、附加费、溢价：◆an insurance premium 保险费◆a premium for express delivery 快递附加费
• contribution a sum of money that you pay regularly to your employer or the government in order to pay for benefits such as health insurance, a pension, etc. 指（给雇主或政府用作医疗保险、养老金等福利的）定期缴款：◆You can increase your monthly contributions to the pension plan. 你可以增加你的养老金计划每月供款。
• subscription an amount of money you pay in advance to receive regular copies of a newspaper or magazine or to receive a service 指（报刊、杂志的）订阅费、订购款，（服务的）用户费：◆a subscription to 'Newsweek' 《新闻周刊》的订阅费
• repayment (BrE) an amount of money that you pay regularly to a bank, etc. until you have returned all the money that you owe; the act of paying this money 指按期偿还的款项、分期偿还额、偿还债务、归还借款：◆the repayments on the loan 贷款的分期偿还额
• deposit an amount of money that you pay as the first part of a larger payment 指订金：◆We've put down a 5% deposit on the house. 我们已支付了房款的 5% 作为订金。
• instalment one of a number of payments that you make regularly over a period of time until you have paid for sth 指分期付款的一期付款：◆We paid for the car by/in instalments. 我们以分期付款买了这辆车。

Patterns

• (a/an) annual/monthly/regular payment/premium/contributions/subscription/repayment/deposit/instalment
• payment/repayment in full
• to pay a(n) premium/contribution/subscription/deposit/instalment
• to make a payment/repayment/deposit
• to meet/keep up (with) (the) payment(s)/the premiums/(the) repayment(s)/the instalments