... opposite sign 异号,反号 play opposite 演相对的异性角色... the opposite number对等的人 ...
双语例句
1
The Foreign Secretary is currently having talks with his oppositenumber in the White House.
外交大臣现正和白宫的对等官员会谈。
《牛津词典》
2
Aside from some twists of barbed wire, a tall (and now cracked and pock-marked) surrounding wall, number 25 is not much different from the largish houses across the potato fields opposite.
The gathering, hosted by David Miliband, Britain's foreign secretary, and his Afghan oppositenumber, will concentrate on security in Afghanistan and plans to tackle endemic corruption.