支票是一种纸,你在上面写上钱数,别人可以拿去银行换钱。

A 支票 is a piece of paper where you write an amount of money, and others can take it to the bank to exchange for cash.

现在很多人用手机付钱,用支票的人比以前少了。

Nowadays, many people pay with their phones, and fewer people use 支票 than before.