单词	portal system
释义	portal system noun : a system of veins that begins and ends in capillaries Example Sentences Recent Examples on the Web In March 2021, Metro Government switched to an online portal system called NextRequest to handle the submission and fulfillment of city public records requests. Kala Kachmar, The Courier-Journal, 27 May 2022 Washington: Some independent pharmacies are questioning whether health officials have the authority to require them to use the D.C. Health vaccine portal system instead of their own, WUSA-TV reports. From Usa Today Network And Wire Reports, USA TODAY, 13 May 2020 Word History Etymology portal vein First Known Use 1754, in the meaning defined above Medical Definition portal system noun : a system of veins that begins and ends in capillaries see hepatic portal system, pituitary portal system
随便看	plate battery plate beam plate block plate bolt plate bone plate budding plate bulb plate calender plate circuit plate clutch plate column plate count plate culture plate current plate cut plate cylinder plate finish plate gear plate girder plate horse plate keel plate letter plate lock plate mark plate meristem

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。