喻指事先规定言行的态度、宗旨、方向、精神等，要求按规定的原则办事to set the tone

• 原国务院知青领导小组组长和主任定调子，自始至终主持起草报告工作的。

  The former chairman and head of supervising the educated youth presides over the drafting of the report throughout.

• 杜绝领导定调子

  prevent the leadership from calling the shots