spearhead
🇺🇸
/ˈspɪrhed/
🇬🇧
/ˈspɪəhed/
The leader or main supporter of an activity.
She was the spearhead of the effort to improve local schools.
她是改善當地學校努力的先鋒。
To lead or start an activity, especially an attack or a campaign.
She will spearhead the new community project.
她將成為新社區項目的先鋒。