backbencher

n.

后座议员；

复数：backbenchers

1. The backbencher exhorted his colleagues to vote against the motion to censure him for his prolonged absences from the House.
   一位后座议员力劝同僚投票反对谴责他长期不出席国会的议案。

The job of the Backbencher
A Backbencher on Parliamentary Reform, 1831–1832
The BBC's definition of 'backbencher'
Member of Parliament : the job of a backbencher
Party Control and Backbencher Dissent: Debating the Financial Crisis of 2008
Constitutional Experts Back Liberal Backbencher's Genetic Discrimination Bill
12 TO WALK OUT ON FG OVER ABORTION; Backbencher Says He Can't Support Suicide Provision
Parliamentary Reform: Impediments to an Enlarged Role for the Backbencher
THE LONELINESS OF THE PRO-GOVERNMENT BACKBENCHER AND THE PRECARIOUSNESS OF SIMPLE MAJORITY RULE IN TUVALU
Gay Tory MP 'shaken up' after being allegedly head-butted by Labour backbencher