rollout

详细解释:n. 首次展示

详细解释：

roll.out

n.（名词）
The inauguration or initial public exhibition of a new product, service, or policy:
初次公开展出，新产品展览：一种新产品、新服务项目或新政策的开创或首次公开展览：
例句：
The manufacturer`s rollout of the new jet is scheduled for next month.
定于下月首次公开展出那家工厂生产的喷气式飞机

Football A play in which the quarterback runs toward a sideline after receiving the snap with the intention of passing the ball.
【橄榄球】 横移突破战术：一种四分卫接到对方开球后朝边线奔跑以试图传球给己方队员的战术