also I.R.S., initialism (acronym) of Internal Revenue Service, U.S. federal government tax collection agency, attested by 1954. The office dates to 1862; name changed 1953 from Bureau of Internal Revenue.
实用例句
1. Also , the iRs contribution to the measured potential will be much smaller.
再之, iRs对测量电势的贡献也是很小的.来自辞典例句
2. IRS is a provider of classification, certification, verification, and advisory services.
IRS为 客户提供船舶入级 、 发证 、 审核与咨询业务.来自互联网
3. Four members ( IRS - 1、 IRS - 2、 IRS - 3、 IRS - 4 ) have heen identified now.