The IRS is the Internal Revenue Service, the United States government office that collects national taxes.

The IRS IRS is the Internal Revenue Service就是Internal Revenue Service， the United States government office that collects national taxes也就是美國負責收全國稅金的政府機關。

The two big ones people mean are income tax, based on how much a person earns, and corporation tax, based on how much profit a company makes. People in the US have to send an income tax return in April each year: an official form showing tax already paid and tax still owed.

The two big ones people mean大家最常講的兩種稅 are income tax, based on how much a person earns是根據一個人賺多少而課的所得稅， and corporation tax, based on how much profit a company makes以及根據一間公司賺多少利潤而課的公司稅。People in the US have to send an income tax return in April each year住在美國的人每年四月都要交income tax return（報稅表），an official form showing tax already paid and tax still owed也就是一份正式的表格，寫著已經繳了多少稅，還欠多少稅。

In American news and films the IRS often feels a little feared; a letter from them can mean a check of your numbers, called an audit.

In American news and films在美國的新聞和電影裡 the IRS often feels a little feared IRS常常讓人有點害怕；a letter from them can mean a check of your numbers收到他們的信可能代表要檢查你的帳目數字， called an audit這個檢查叫做audit。

It is a US office, not a world tax police. Though actually, other countries have their own tax offices with other names, so IRS is not a generic word for any tax bureau.

It is a US office它是美國的機關， not a world tax police不是全世界的稅務警察。Though actually不過事實上， other countries have their own tax offices with other names其他國家有自己的稅務機關，用不同的名字， so IRS is not a generic word for any tax bureau所以IRS不是任何稅務機關的通用說法。