rollout

剑桥词典

the act of making something, especially a product or service , available for the first time
首次提供（产品或服务）
Since its rollout in fall of 1999, PayPal has gained millions of members . 自从1999年首次提供使用以来，PayPal已经吸引了以百万计的用户。

A rollout of proposals , laws , or information is the first time they are made known to the public .
首次展示（提议，法律或信息） 返回 rollout