Elaborate: to explain or describe something in a more detailed way 详尽阐述;详细描述 ~ (on/upon sth)
He said he was resigning but did not elaborate on his reasons. 他说他准备辞职但未详细说明原因. V
She went on to elaborate her argument. 她进而详尽阐述了她的论点.
Multiple: many in number; involving many different people or things 数量多的;多种多样的 only before noun
multiple copies of documents 各种文件的大量的副本
a multiple entry visa 多次入境签证
to suffer multiple injuries(= in many different places in the body) 多处受伤
a multiple birth(= several babies born to a mother at one time) 多胎产
a multiple pile-up(= a crash involving many vehicles) 连环车祸
a house in multiple ownership/occupancy(= owned/occupied by several different people or families) 多户所有／使用的房屋
