chief whip
noun [ C usually singular ] (also Chief Whip) uk/ˌtʃiːf ˈwɪp/ us/ˌtʃiːf ˈwɪp/
（政党在议会或立法机关中监督该党其他党员在投票时出席并按规定投票的）总党鞭，首席党鞭
in many elected political systems, a member of a political party in a parliament, etc., who is in charge of making certain that other party members are present at voting time and that they vote in a particular way. In the British political system, the chief whip of the governing political party in parliament is also a member of the cabinet (= group of important government ministers) and has the position of Parliamentary Secretary to the Treasury.
Castagnetti was chief whip of the Italian centre-left Margherita party. 卡斯塔涅蒂曾任意大利中左翼政党自由雏菊党的首席党鞭。
They walked the few yards back to the Chief Whip's office in Downing Street. 他们走了几步回到了唐宁街的首席党鞭办公室。