wingman
/ˈwɪŋmən/noun
(pl.-men /-mən/)
1
- a pilot whose aircraft is positioned behind and outside the leading aircraft in a formation僚机飞行员。
1.1
- a man who helps or supports another man; a friend or close associate助手; 朋友; 亲密伙伴（或同事）：
I thought he might need a wingman - he was quite tired and emotional.
我以为他需要一个助手：他很累, 而且情绪又容易激动。