the man on the spot

• n. 熟悉情况的人

例句

用作名词 (n.)

1. To write a leaflet, you must consult with comrades who are well posted on the state of affairs.
   写一个传单要和熟悉情况的同志商量。

词汇搭配

• the man on the spot 熟悉情况的人...