go-ahead
词源说明
Deverbal from go ahead.
As a name for footwear, from the fact that one can't easily step backwards wearing them.
释义（英文）
名词 Noun
- Approval, agreement, or instruction to begin or proceed.
- (dated, usually in the plural) A flip-flop (footwear).
形容词 Adjective
- (comparable) Progressive; exerting leadership.
- (comparable) Dashing; energetic.
- (sports, not comparable) Being a score which gives the scoring team or player the lead in the game.