中文：

支票是一种用于转账的票据，由存款人签发，委托办理支票存款业务的银行在见票时无条件支付确定的金额给收款人或持票人的票据。

支票分为现金支票和转账支票两种。现金支票只能用于支取现金，而转账支票只能用于转账。在购买商品或接受服务时，可以使用现金支票来支付，也可以使用转账支票将款项转入对方账户。

签发支票必须提供一定数量的现金或银行存款作为保证，并按照规定格式填写有关内容。支票具有流通性，可以转让给第三方，也可以向银行贴现。

使用支票进行支付非常方便，而且比较安全。但是，使用支票也需要遵守相关法律法规和规定，如出票人必须按照签发的支票金额承担付款责任，持票人也必须妥善保管好支票并严格保密等。

总的来说，支票是一种方便、安全、快捷的支付工具，广泛应用于企业、个人以及政府间的经济活动中。

英文：

A check is a kind of instrument used for transfer, which is issued by a depositor to entrust the bank handling check deposit business to pay the specified amount to the payee or the holder on sight without condition.

There are two kinds of checks: cash checks and transfer checks. Cash checks can only be used to withdraw cash, while transfer checks can only be used for transfer. When purchasing goods or receiving services, you can use cash checks to pay, or use transfer checks to transfer the funds to the other party's account.

To issue a check, you must provide a certain amount of cash or bank deposit as a guarantee and fill in the relevant content in accordance with the specified format. Checks have negotiability and can be transferred to third parties, or can be discounted with a bank.

Using checks for payment is very convenient and relatively safe. However, the use of checks also needs to comply with relevant laws, regulations and provisions, such as the issuer must bear the payment responsibility in accordance with the amount of the issued check, and the holder must also properly keep the check and maintain strict confidentiality.

Overall, checks are a convenient, secure and fast payment method widely used in economic activities such as businesses, individuals and governments.