1705 as abbreviation of reputation (n.); upon rep "I swear it" was a common 18c. slang asseveration. As a shortening of repetition (n.) it is recorded from 1864, originally school slang; as a shortening of representative (n.), especially "sales representative," it is attested from 1896. As an abbreviation of repertory (company) it is recorded from 1925.
权威例句
1. Contact the health and safety rep at your union.
与你所在工会的健康安全代表联系。
2. I'd been working as a sales rep for a photographic company.
我一直在一家摄影公司做销售代表。
3. Darren has been working as a rep.
达伦近来一直在当推销员.
4. REP - PCR , AFLP technique can reveal the genetic differentiation properly.
AFLP和 REP -PCR 技术均能很好地反映菌株的遗传学差异.
5. A play is tested in rep before ever hitting a West End stage.