spearhead

名词 spearhead:

1. someone who leads or initiates an activity (attack or campaign etc.)
2. the leading military unit in an attack
3. the head and sharpened point of a spear
   同义词：spearpoint, spear-point

动词 spearhead:

1. be the leader of

1. The tanks spearheaded the offensive.
   坦克在那次进攻中打头阵。
2. The new managing director will act as spearhead of the campaign.
   新上任的常务董事将在这场运动中挂帅。